Channel 4 is a British public-service television broadcaster which began transmission on 2 November 1982. Although largely 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 Channel Four Television Corporation, a public body established in 1990, coming into operation in 1993. With the conversion of the Wenvoe transmitter group in Wales to digital on 31 March 2010, Channel 4 became an entirely UK-wide TV channel for the first time.

The channel was established to provide a fourth television service to the United Kingdom in addition to the television licence-funded BBC's two services and the single commercial broadcasting network, ITV. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.