While news production remains the cornerstone of ITN's business model, the company has diversified from its original remit. ITN Source (originally ITN Archive) is one of the world's largest sources of historical film.[13] ITN Productions creates multi-platform content for major global brands, covering genres such as factual, entertainment, news and corporate production. Clients that commission programmes from ITN Productions include major UK and international broadcasters such as ITV, the BBC, Channel 4, Channel 5, History and Discovery, with television commissions including Climbing Great Buildings on BBC2 and Mud Men on the History Channel
