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76-467: The CableTelevision Advertising Bureau (CAB) is an organization of national and local ad-supported cable TV networks in the United States . This advertising -related article is a stub . You can help Misplaced Pages by expanding it . Television network A television broadcaster or television network is a telecommunications network for the distribution of television content , where

152-492: A charitable organization or public college . Money can be accepted if there is no on-air mention of the sponsor. NCE stations may also not mention prices or qualities of commercial products or services in any situation which would be construed as promoting or endorsing any company, regardless of whether it sponsors the station. Underwriting spots are brief and to-the-point, as they must not be disruptive to programming. Additionally, underwriting spots on public TV are at

228-569: A blurry demonstration broadcast showed that it would not be in regular use for several months. The DuMont Television Network , which had begun experimental broadcasts before the war, launched what Newsweek called "the country's first permanent commercial television network" on 15 August 1946, connecting New York City with Washington. Not to be outdone, NBC launched what it called "the world's first regularly operating television network" on 27 June 1947, serving New York City, Philadelphia, Schenectady and Washington. Baltimore and Boston were added to

304-519: A central operation provides programming to many television stations , pay television providers or, in the United States, multichannel video programming distributors . Until the mid-1980s, broadcast programming on television in most countries of the world was dominated by a small number of terrestrial networks . Many early television networks such as the BBC , CBC , PBS , PTV , NBC or ABC in

380-478: A consolidation of each respective network's higher-rated programs onto one schedule); MyNetworkTV , a network formed from affiliates of UPN and The WB that did not affiliate with The CW, launched at the same time. FCC regulations in the United States restricted the number of television stations that could be owned by any one network, company or individual . This led to a system where most local television stations were independently owned, but received programming from

456-645: A differentiation between them. Within the industry, a tiering is sometimes created among groups of networks based on whether their programming is simultaneously originated from a central point, and whether the network master control has the technical and administrative capability to take over the programming of their affiliates in real-time when it deems this necessary – the most common example being during national breaking news events. In North America in particular, many television networks available via cable and satellite television are branded as "channels" because they are somewhat different from traditional networks in

532-545: A few examples of this); most of those stations now broadcast as affiliates of commercially owned networks. This is also rare in Mexico, though XEIMT-TV , a cultural channel in Mexico City, and XEWH-TV , the main station of the state network of Sonora, operate under commercial concessions and not permits. A number of new low power FM ( LPFM ) NCE stations operating in the non-reserved part of the spectrum have been licensed by

608-540: A government entity that was created in 1926 to regulate the radio industry. With some exceptions, radio stations east of the Mississippi River received official call signs beginning with the letter "W"; those west of the Mississippi were assigned calls beginning with a "K". The number of programs that these early stations aired was often limited, in part due to the expense of program creation. The idea of

684-547: A joint venture between Time Warner and the Tribune Company , and the United Paramount Network ( UPN ), formed through a programming alliance between Chris-Craft Industries and Paramount Television (whose parent, Viacom , would later acquire half and later all of the network over the course of its existence). In September 2006, The CW was launched as a "merger" of The WB and UPN (in actuality,

760-521: A large amount of syndicated programming. Other networks are dedicated to specialized programming, such as religious content or programs presented in languages other than English, particularly Spanish. The largest television network in the United States, however, is the Public Broadcasting Service ( PBS ), a non-profit, publicly owned, non-commercial educational service. In comparison to the commercial television networks, there

836-536: A large number of channels, as does UKTV . Sweden had only one television network from 1956 until the early-1990s: the public broadcaster Sveriges Television (SVT). Commercial companies such as Modern Times Group , TV4 , Viasat , and SBS Discovery have established TV networks since the 1980s although they initially aired exclusively on satellite. In 1991, TV4 became Sweden's first commercial television network to air terrestrially. Most television programming in Sweden

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912-438: A larger area, often an entire state, and become full-time affiliates to one specific metropolitan network. As well as these free-to-air channels, there are others on Australia's Pay television network Foxtel . New Zealand has one public network, Television New Zealand (TVNZ), which consists of two main networks: TVNZ 1 is the network's flagship network which carries news, current affairs and sports programming as well as

988-456: A method called "broadcast syndication", and today nearly every television station in the United States obtains syndicated programs in addition to network-produced fare. Late in the 20th century, cross-country microwave radio relays were replaced by fixed-service satellites. Some terrestrial radio relays remained in service for regional connections. After the failure and shutdown of DuMont in 1956, several attempts at new networks were made between

1064-464: A national basis. Currently, licensed national or provincial networks must be carried by all cable providers (in the country or province, respectively) with a service area above a certain population threshold, as well as all satellite providers. However, they are no longer necessarily expected to achieve over-the-air coverage in all areas (APTN, for example, only has terrestrial coverage in parts of northern Canada). In addition to these licensed networks,

1140-541: A network system which would distribute programming to many stations simultaneously, saving each station the expense of creating all of their own programs and expandingus transmitted from station to station to listeners across the United States. Other companies, including CBS and the Mutual Broadcasting System , soon followed suit, each network signed hundreds of individual stations on as affiliates: stations which agreed to broadcast programs from one of

1216-488: A network, becoming Ostankino Channel One . The other five networks were operated by Ground Zero. This free airwave space allowed many private television networks like NTV and TV-6 to launch in the mid-1990s. The 2000s were marked by the increased state intervention in Russian television. On 14 April 2001 NTV experienced management changes following the expulsion of former oligarch and NTV founder Vladimir Gusinsky . As

1292-1011: A process that would ensure that non-commercial applicants would have a chance against those who could afford to bid at spectrum auctions . Two such stations are WGPB FM in Rome, Georgia and WNGH-FM in Chatsworth, Georgia , former commercial stations purchased in 2007 and 2008 and operated by Georgia Public Broadcasting (GPB), serving the mountains northwest of Atlanta which previously had no GPB radio service. In addition, there were at least four stations with commercial licenses that formerly operated as PBS member stations ( WNYC-TV in New York City , WMHX in Albany, New York , KAUT-TV in Oklahoma City , and KCPQ-TV in Seattle are

1368-401: A rate of more than $ 5.00 per subscriber to ESPN). The providers also handle the sale of advertising inserted at the local level during national programming, in which case the broadcaster and the cable/satellite provider may share revenue . Networks that maintain a home shopping or infomercial format may instead pay the station or cable/satellite provider, in a brokered carriage deal. This

1444-502: A result, most of the prominent reporters featured on NTV left the network. Later on 22 January 2002, the second largest private television network TV-6 , where the former NTV staff took refuge, was shut down allegedly because of its editorial policy. Five months later on 1 June, TVS was launched, mostly employing NTV/TV-6 staff, only to cease operations the following year. Since then, the four largest television networks (Channel One, Russia 1, NTV and Russia 2) have been state-owned. Still,

1520-491: A second channel, BBC 2 (with the original service being renamed BBC 1 ). A second national commercial network was launched Channel 4 , although Wales instead introduced a Welsh-language service, S4C . These were later followed by the launch of a third commercial network, Channel 5 . Since the introduction of digital television, the BBC, ITV, Channel 4 and Channel 5 each introduced a number of digital-only channels. Sky operates

1596-468: A second or even third station providing a greater variety of content. Commercial television services also became available when private companies applied for television broadcasting licenses. Often, each new network would be identified with their channel number, so that individual stations would often be numbered "One", "Two", "Three" and so forth. The first television network in the United Kingdom

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1672-508: A single company (as is the case with the BBC), each local area had a separate television channel that was independently owned and operated, although most of these channels shared a number of programmes, particularly during peak evening viewing hours. These channels formed the ITV network . When the advent of UHF broadcasting allowed a greater number of television channels to broadcast, the BBC launched

1748-446: A small number of stations still operating as affiliates. Most television services outside North America are national networks established by a combination of publicly funded broadcasters and commercial broadcasters. Most nations established television networks in a similar way: the first television service in each country was operated by a public broadcaster , often funded by a television licensing fee, and most of them later established

1824-406: A telephone improvement device. Its high capacity (transmitting 240 telephone calls simultaneously) also made it ideal for long-distance television transmission, where it could handle a frequency band of 1 MHz. German television first demonstrated such an application in 1936 by relaying televised telephone calls from Berlin to Leipzig , 180 km (110 mi) away, by cable. AT&T laid

1900-668: A third party company (for example, the TV2 programme Shortland Street is produced by South Pacific Pictures ). The networks produce their own news and current affairs programs, with most of the content filmed in Auckland. Noncommercial educational On the FM broadcast band , the Federal Communications Commission (FCC) has reserved the lowest 20 channels, 201~220 (88.1~91.9 MHz ) for NCE stations only. This

1976-531: A unionwide network. Until 1989, there were six television networks, all owned by the USSR Gosteleradio. This changed during Mikhail Gorbachev 's Perestroika program, when the first independent television network, 2×2 , was launched. Following the breakup of the Soviet Union, USSR Gosteleradio ceased to exist as well as its six networks. Only Channel One had a smooth transition and survived as

2052-488: Is TV3 , which competes directly with both TVNZ broadcast networks. MediaWorks also operates a second network, FOUR , which airs mostly imported programmes with children's shows airing in the daytime and shows targeted at teenagers and adult between 15 and 39 years of age during prime time. MediaWorks also operates a timeshift network, TV3 + 1, and a 24-hour music network, C4 . All television networks in New Zealand air

2128-523: Is centralised except for local news updates that air on SVT2 and TV4. Until 1989, Netherlands Public Broadcasting was the only television network in the Netherlands, with three stations, Nederland 1 , Nederland 2 and Nederland 3 . Rather than having a single production arm, there are a number of public broadcasting organizations that create programming for each of the three stations, each working relatively independently. Commercial broadcasting in

2204-418: Is especially common with low-power television stations, and in recent years, even more so for stations that used this revenue stream to finance their conversion to digital broadcasts, which in turn provides them with several additional channels to transmit different programming sources. Television broadcasting in the United States was heavily influenced by radio. Early individual experimental radio stations in

2280-407: Is explained by author Tim P. Vos in his abstract A Cultural Explanation of Early Broadcast , where he determines targeted group/non-targeted group representations as well as the cultural specificity employed in the television network entity. Vos notes that policymakers did not expressly intend to create a broadcast order dominated by commercial networks. In fact, legislative attempts were made to limit

2356-474: Is known as the reserved band , sometimes known by the term "left of the dial" (taken from the Replacements' song of the same name ), which refers to the college and other non-commercial stations that broadcast from those frequencies. It also includes channel 200 (87.9 MHz), but only for class D NCE stations unable to find another frequency; the frequency has been unused for its intended purpose in

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2432-548: Is no central unified arm of broadcast programming, meaning that each PBS member station has a significant amount of freedom to schedule television shows as they consent to. Some public television outlets, such as PBS, carry separate digital subchannel networks through their member stations (for example, Georgia Public Broadcasting ; in fact, some programs airing on PBS were branded on other channels as coming from GPB Kids and PBS World ). This works as each network sends its signal to many local affiliated television stations across

2508-544: Is the British Broadcasting Corporation ( BBC ), which is perhaps most-well known for its news agency BBC News . Owned by the Crown , the BBC funds itself in two ways. UK services branded under BBC are funded by the television license paid by British residents, as a result no advertising appears on these services. The advertising-funded arm ( BBC Studios ) employs 23,000 people worldwide including

2584-1059: The Big Three television networks , the American Broadcasting Company (ABC), CBS (formerly the Columbia Broadcasting System) and the National Broadcasting Company ( NBC ); however, the Fox Broadcasting Company (Fox), which launched in October 1986, has gained prominence and is now considered part of the "Big Four". The Big Three provide a significant number of programs to each of their affiliates, including newscasts , prime time, daytime and sports programming, but still reserve periods during each day where their affiliate can air local programming , such as local news or syndicated programs . Since

2660-553: The Nine Network ; while their equivalents on VHF channels 7 and 10 respectively formed the Seven Network and Network 10 . Until 1989, areas outside these main cities had access to only a single commercial station, and these rural stations often formed small networks such as Prime Television . Beginning in 1989, however, television markets in rural areas began to aggregate, allowing these rural networks to broadcast over

2736-510: The "prime-time" programs that the network offered. Local stations occasionally break from regularly scheduled network programming however, especially when a breaking news or severe weather situation occurs in the viewing area. Moreover, when stations return to network programming from commercial breaks , station identifications are displayed in the first few seconds before switching to the network's logo. A number of different definitions of "network" are used by government agencies, industry, and

2812-567: The 1950s and the 1970s, with little success. The Fox Broadcasting Company , founded by the Rupert Murdoch -owned News Corporation (now owned by Fox Corporation ), was launched on 9 October 1986 after the company purchased the television assets of Metromedia ; it would eventually ascend to the status of the fourth major network by 1994. Two other networks launched within a week of one another in January 1995: The WB Television Network,

2888-465: The 2000s saw a rise of several independent television networks such as REN (its coverage increased vastly allowing it to become a federal network), Petersburg – Channel Five (overall the same), the relaunched 2×2 . The Russian television market is mainly shared today by five major companies: Channel One, Russia 1, NTV, TNT and CTC. The major commercial television network in Brazil is Rede Globo , which

2964-578: The CRTC: government-owned CBC Television (English) and Ici Radio-Canada Télé (French), French-language private network TVA , and APTN , a network focused on Indigenous peoples in Canada . A third French-language service, Noovo (formerly V), is licensed as a provincial network within Quebec , but is not licensed or locally distributed (outside of carriage on the digital tiers of pay television providers) on

3040-529: The FCC since the Local Community Radio Act was enacted in 2010. The FCC defines several different activities as being commercial in nature. Sponsorship of NCE stations is called underwriting , and stations may make announcements of these grants on-air. However, they may not accept money for such mentions, only goods and services , unless the sponsor itself is a non-profit , such as

3116-549: The NBC television network in late 1947. DuMont and NBC would be joined by CBS and ABC in 1948. In the 1940s, the term "chain broadcasting" was used when discussing network broadcasts, as the television stations were linked together in long chains along the East Coast . But as the television networks expanded westward, the interconnected television stations formed major networks of connected affiliate stations. In January 1949, with

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3192-492: The Netherlands is currently operated by two networks, RTL Nederland and SBS Broadcasting , which together broadcast seven commercial stations. The first television network in the Soviet Union launched on 7 July 1938 when Petersburg – Channel 5 of Leningrad Television became a unionwide network. The second television network in the Soviet Union launched on 22 March 1951 when Channel One of USSR Central Television became

3268-408: The U.S. NCE band as noncommercial or with limited advertising based on each individual licence, but there are exceptions, such as CIXL , a fully commercial station that operates on 91.7.) NCE stations may also operate on a non-reserved channel. However this was rare in the United States due to the high cost of buying a commercial broadcasting station, and because for years the FCC failed to maintain

3344-639: The US and in Australia evolved from earlier radio networks. In countries where most networks broadcast identical, centrally originated content to all of their stations, and where most individual television transmitters therefore operate only as large " repeater stations ", the terms "television network", " television channel " (a numeric identifier or radio frequency ) and "television station" have become mostly interchangeable in everyday language, with professionals in television-related occupations continuing to make

3420-611: The United States began limited operations in the 1910s. In November 1920, Westinghouse signed on "the world's first commercially licensed radio station", KDKA in Pittsburgh , Pennsylvania. Other companies built early radio stations in Detroit, Boston , New York City and other areas. Radio stations received permission to transmit through broadcast licenses obtained through the Federal Radio Commission (FRC),

3496-810: The United States since KSFH shut down in 2021. Many of the reserved-band channels are used by stations bordering the United States, such as with broadcasting in the San Diego/Tijuana metropolitan area . Additionally, neither the Canadian Radio-television and Telecommunications Commission nor Mexico's Federal Telecommunications Institute have such a reserved band. (In Mexico, individual stations belonging to state and federal governments, educational institutions, and non-profit groups are licensed under permits or permisos , which are non-commercial, non-profit licenses that do not permit advertising. Canada, in practice, generally keeps most of

3572-732: The beginning or end of the TV show rather than in the middle, as they have increasingly become on commercial stations. Retransmission consent has often been chosen over must-carry by the major commercial television networks. Under the present rules, a new agreement is negotiated every three years, and stations must choose must-carry or retransmission consent for each cable system they wish their signal to be carried on. Non-commercial stations (such as local PBS stations) may not seek retransmission consent and may only invoke must-carry status. Like commercial stations, NCE stations are allowed to lease subcarriers in exchange for money , essentially making

3648-399: The country. These local stations then carry the "network feed", which can be viewed by millions of households across the country. In such cases, the signal is sent to as many as 200+ stations or as little as just a dozen or fewer stations, depending on the size of the network. With the adoption of digital television , television networks have also been created specifically for distribution on

3724-440: The creation of Fox, the number of American television networks has increased, though the amount of programming they provide is often much less: for example, The CW only provides fifteen hours of primetime programming each week (along with three hours on Saturdays), while MyNetworkTV only provides ten hours of primetime programming each week, leaving their affiliates to fill time periods where network programs are not broadcast with

3800-503: The digital subchannels of television stations (including networks focusing on classic television series and films operated by companies like Weigel Broadcasting (owners of Movies! and Me-TV ) and Nexstar Media Group (owners of Rewind TV and Antenna TV ), along with networks focusing on music, sports and other niche programming). Cable and satellite providers pay the networks a certain rate per subscriber (the highest charge being for ESPN , in which cable and satellite providers pay

3876-546: The federal regulator enacted the Prime Time Access Rule , which restricted the amount of time that the networks could air programs; officials hoped that the rules would foster the development of quality local programs, but in practice, most local stations did not want to bear the burden of producing many of their own programs, and instead chose to purchase programs from independent producers. Sales of television programs to individual local stations are done through

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3952-665: The first L-carrier coaxial cable between New York City and Philadelphia , with automatic signal booster stations every 10 miles (16 km), and in 1937 it experimented with transmitting televised motion pictures over the line. Bell Labs gave demonstrations of the New York–Philadelphia television link in 1940 and 1941. AT&T used the coaxial link to transmit the Republican National Convention in June 1940 from Philadelphia to New York City, where it

4028-518: The four major television networks originally only broadcast a few hours of programs a week to their affiliate stations, mostly between 8:00 and 11:00 p.m. Eastern Time , when most viewers were watching television. Most of the programs broadcast by the television stations were still locally produced. As the networks increased the number of programs that they aired, however, officials at the Federal Communications Commission (FCC) grew concerned that local television might disappear altogether. Eventually,

4104-495: The general public. Under the Broadcasting Act , a network is defined as "any operation where control over all or any part of the programs or program schedules of one or more broadcasting undertakings is delegated to another undertaking or person", and must be licensed by the Canadian Radio-television and Telecommunications Commission (CRTC). Only three national over-the-air television networks are currently licensed by

4180-490: The idea of networking television signals (sending one station's video and audio signal to outlying stations) was born. However, the signal from an electronic television system, containing much more information than a radio signal, required a broadband transmission medium. Transmission by a nationwide series of radio relay towers would be possible but extremely expensive. Researchers at AT&T subsidiary Bell Telephone Laboratories patented coaxial cable in 1929, primarily as

4256-443: The majority of the locally produced shows broadcast by TVNZ and imported shows. TVNZ's second network, TV2 , airs mostly imported shows with some locally produced programs such as Shortland Street . TVNZ also operates a network exclusive to pay television services, TVNZ Heartland , available on providers such as Sky . TVNZ previously operated a non-commercial public service network, TVNZ 7 , which ceased operations in June 2012 and

4332-565: The manufacture of television and radio equipment for civilian use from 1 April 1942 to 1 October 1945, temporarily shutting down expansion of television networking. However, in 1944 a short film, " Patrolling the Ether ", was broadcast simultaneously over three stations as an experiment. AT&T made its first postwar addition in February 1946, with the completion of a 225-mile (362 km) cable between New York City and Washington, D.C., although

4408-577: The network for their own programming, a method known as regional variation . This is common where small networks are members of larger networks. The majority of commercial television stations are self-owned, even though a variety of these instances are the property of an owned-and-operated television network. The commercial television stations can also be linked with a noncommercial educational broadcasting agency. Some countries have launched national television networks, so that individual television stations can act as common repeaters of nationwide programs. On

4484-530: The network through a franchising contract, except in a few major cities that had owned-and-operated stations (O&O) of a network and independent stations. In the early days of television, when there were often only one or two stations broadcasting in a given market, the stations were usually affiliated with multiple networks and were able to choose which programs would air. Eventually, as more stations were licensed, it became common for each station to be exclusively affiliated with only one network and carry all of

4560-490: The network's preferred position. As to individual stations, modern network operations centers usually use broadcast automation to handle most tasks. These systems are not only used for programming and for video server playout , but use exact atomic time from Global Positioning Systems or other sources to maintain perfect synchronization with upstream and downstream systems, so that programming appears seamless to viewers. A major international television broadcaster

4636-458: The networks. As radio prospered throughout the 1920s and 1930s, experimental television stations, which broadcast both an audio and a video signal, began sporadic broadcasts. Licenses for these experimental stations were often granted to experienced radio broadcasters, and thus advances in television technology closely followed breakthroughs in radio technology. As interest in television grew, and as early television stations began regular broadcasts,

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4712-582: The next. Citytv originally began operating as a television system in 2002 when CKVU-TV in Vancouver started to carry programs originating from CITY-TV in Toronto and adopted that station's "Citytv" branding, but gradually became a network by virtue of national coverage through expansions into other markets west of Atlantic Canada between 2005 and 2013. Most local television stations in Canada are now owned and operated directly by their network, with only

4788-522: The operation of broadcaster UKTV in the UK itself. Experimental television broadcasts were started in 1929, using an electromechanical 30-line system developed by John Logie Baird . Limited regular broadcasts using this system began in 1934 and an expanded service (now known as BBC Television ) started from Alexandra Palace in November 1936. Television in the United States had long been dominated by

4864-410: The other hand, television networks also undergo the impending experience of major changes related to cultural varieties. The emergence of cable television has made available in major media markets, programs such as those aimed at American bi-cultural Latinos. Such a diverse captive audience presents an occasion for the networks and affiliates to advertise the best programming that needs to be aired. This

4940-502: The public and the broadcasters themselves will often refer to them as "networks" regardless. Some of these systems, such as CTV 2 and the now-defunct E! , essentially operate as mini-networks, but have reduced geographical coverage. Others, such as Omni Television or the Crossroads Television System , have similar branding and a common programming focus, but schedules may vary significantly from one station to

5016-899: The same programming across the entire country with the only regional deviations being for local advertising; a regional news service existed in the 1980s, carrying a regional news programme from TVNZ's studios in New Zealand's four largest cities, Auckland, Wellington , Christchurch and Dunedin . In the 1960s, the service operated at the time by the New Zealand Broadcasting Corporation was four separate television stations – AKTV2 in Auckland, WNTV1 in Wellington, CHTV3 in Christchurch and DNTV2 in Dunedin – which each ran their own newscast and produced some in-house programmes, with other shows being shared between

5092-562: The sense defined above, as they are singular operations – they have no affiliates or component stations, but instead are distributed to the public via cable or direct-broadcast satellite providers. Such networks are commonly referred to by terms such as " specialty channels " in Canada or " cable networks " in the U.S. A network may or may not produce all of its own programming. If not, production companies (such as Warner Bros. Television , Universal Television , Sony Pictures Television and TriStar Television ) can distribute their content to

5168-519: The sign-on of DuMont's WDTV in Pittsburgh, the Midwest and East Coast networks were finally connected by coaxial cable (with WDTV airing the best shows from all four networks). By 1951, the four networks stretched from coast to coast, carried on the new microwave radio relay network of AT&T Long Lines . Only a few local television stations remained independent of the networks. Each of

5244-504: The station a common carrier . This may be for a commercial audio , video , or data service, or a non-commercial one like a radio reading service for the blind . NCE stations broadcasting in digital TV or HD Radio may lease part of their bandwidth (actually bitrate ) in a similar manner, however, the commercial use is limited. The main program must always be non-commercial, and must not have its quality diminished excessively by increased lossy compression done in order to fit

5320-624: The stations. Programmes and news footage were distributed via mail, with a programme airing in one region being mailed to another region for broadcast the following week. A network was finally established in 1969, with the same programmes being relayed to all regions simultaneously. From the 1970s to the 1990s, locally produced programmes that aired on TV One and TV2 were produced out of one of the four main studios, with TVNZ's network hub based in Wellington. Today, most locally produced programmes that are aired by both TVNZ and other networks are not actually produced in-house, instead they are often produced by

5396-545: The two main private English-language over-the-air services, CTV and Global , are also generally considered to be "networks" by virtue of their national coverage, although they are not officially licensed as such. CTV was previously a licensed network, but relinquished this license in 2001 after acquiring most of its affiliates, making operating a network license essentially redundant (per the above definition). Smaller groups of stations with common branding are often categorized by industry watchers as television systems , although

5472-471: The various networks, and it is common that a certain production firm may have programs that air on two or more rival networks. Similarly, some networks may import television programs from other countries, or use archived programming to help complement their schedules. Some stations have the capability to interrupt the network through the local insertion of television commercials, station identifications and emergency alerts . Others completely break away from

5548-1486: Was founded in 1965. It grew to become the largest and most successful media conglomerate in the country, having a dominating presence in various forms of media including television, radio, print (newspapers and magazines) and the Internet. Other networks include Rede Bandeirantes , RecordTV , SBT , RedeTV! , TV Cultura , and TV Brasil . Australia has two national public networks, ABC Television and SBS . The ABC operates eight stations as part of its main network ABC TV , one for each state and territory, as well as three digital-only networks, ABC Kids / ABC TV Plus , ABC Me and ABC News . SBS currently operates six stations, SBS , SBS Viceland , SBS World Movies , SBS Food , NITV and SBS WorldWatch . The first commercial networks in Australia involved commercial stations that shared programming in Sydney , Melbourne , Brisbane , Adelaide and later Perth , with each network forming networks based on their allocated channel numbers: TCN-9 in Sydney, GTV-9 in Melbourne, QTQ-9 in Brisbane, NWS-9 in Adelaide and STW-9 in Perth together formed

5624-431: Was operated by the British Broadcasting Corporation ( BBC ). On 2 November 1936 the BBC opened the world's first regular high-definition television service, from a 405 lines transmitter at Alexandra Palace. The BBC remained dominant until eventually on 22 September 1955, commercial broadcasting was established to create a second television network. Rather than creating a single network with local channels owned and operated by

5700-441: Was replaced by the timeshift channel TV One Plus 1. The network operated by Television New Zealand has progressed from operating as four distinct local stations within the four main centers in the 1960s, to having the majority of the content produced from TVNZ's Auckland studios at present. New Zealand also has several privately owned television networks with the largest being operated by MediaWorks . MediaWorks' flagship network

5776-782: Was televised to a few hundred receivers over the NBC station W2XBS (which evolved into WNBC ) as well as seen in Schenectady, New York via W2XB (which evolved into WRGB ) via off-air relay from the New York station. NBC had earlier demonstrated an inter-city television broadcast on 1 February 1940, from its station in New York City to another in Schenectady , New York by General Electric relay antennas, and began transmitting some programs on an irregular basis to Philadelphia and Schenectady in 1941. Wartime priorities suspended

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