Whose Line Is It Anyway? is an American improvisational comedy television series. It is an adaptation of the British series of the same name. It originally aired on ABC from August 5, 1998 to September 4, 2004 and ABC Family from January 17, 2005 to December 15, 2007, hosted by Drew Carey. A revival of the show, hosted by Aisha Tyler, aired on The CW from July 16, 2013 to November 1, 2024.