channel 4 company

Channel 4 is a UK public-service television broadcaster which began working on 2 November 1982. Although commercially self-funded, it is ultimately publicly owned; originally a subsidiary of the Independent Broadcasting Authority (IBA), the station is now owned and operated by the Channel Four Television Corporation, a public body established in 1990, coming into operation in 1993. With the conversion of the Wenvoe transmitter to Digital on 31st March 2010, Channel 4 will become a national TV channel, after almost 28 years.
The channel was established to provide a fourth television service to the UK that would break the duopoly of the Licence Fee-funded BBC's two established services and the single commercial broadcasting network, ITV. Channel 4 enjoys almost universal coverage in the UK and some neighbouring countries and a significant audience share, despite having seen new competition with the growth of cable, satellite and digital services.