A television broadcaster or television network is a telecommunications network for the distribution of television content, where 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 the US and in Australia evolved from earlier radio networks.
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In this Dossier
Television networks in the context of Media in London
London is a major international communications centre with a virtually unrivalled number of media outlets. Almost all of the major media organisations in the UK are based in London. Much of the British media is concentrated in London and is sometimes accused of having a "London bias". All the major television networks are headquartered in London including the BBC, which remains one of the world's most influential media organisations, and the largest broadcaster in the world. Partly to counter complaints about London bias, the BBC announced in June 2004 that some departments are to be relocated to Manchester. Other networks headquartered in London include ITV, Channel 4, Channel 5, CNN International and Sky UK. Like the BBC, these produce some programs elsewhere in the UK, but London is their main production centre. Local programming, including news, is provided by the regional services of the main networks: e.g. BBC London News on BBC One and ITV London on ITV.
There is a huge choice of radio stations available in London. Local citywide stations include music-based stations such as Absolute Radio, Capital London, Smooth London, Kiss, Magic Radio, Heart London, Radio X and Greatest Hits Radio London. Popular news/talk stations include BBC Radio London, LBC and LBC News.
Television networks in the context of Prime time
Prime time (sometimes spelled primetime), or peak time, is the block of broadcast programming taking place during the middle of the evening for television shows. It is mostly targeted towards adults (and sometimes families). It is used by the major television networks to broadcast their season's nightly programming. The term prime-time is often defined in terms of a fixed time period—for example (in the United States), from 8:00 p.m. to 11:00 p.m. (Eastern and Pacific Time) or 7:00 p.m. to 10:00 p.m. (Central and Mountain Time). In India and some Middle Eastern countries, prime time consists of programmes that are aired on television between 8:00 p.m. and 10:00 p.m. local time.