Inependent Television (generally known as ITV) is a public service network of British commercial television broadcasters, set up under the Independent Television Authority (ITA) to provide competition to the BBC. ITV is the oldest commercial television network in the UK. Since 1990 and the Broadcasting Act 1990, its legal name has been Channel 3, the number 3 having no real meaning other than to distinguish it from BBC One, BBC Two and Channel 4 - prior to this, the network had no legal overall name. In part, 3 was assigned as televisions would usually be tuned so that the regional ITV station would be on the third button, the other stations being allocated to that of the number their name contained.