The client is a British free-to-air public service television network headquartered in London. They also have a national HQ in Leeds and creative hubs in Glasgow and Bristol. The channel was established to provide a fourth television service to the U.K. This was in addition to the license-funded BBC One and BBC Two and the single commercial broadcasting network ITV. Although largely commercially self-funded, they are ultimately publicly owned; originally a subsidiary of the Independent Broadcasting Authority (IBA). In 2010, the client extended service into Wales and became a U.K.- wide television channel.