While it started off being broadcast in black and white, the show was one of the first to be shown in colour on BBC2 in 1967. Several famous personalities guested on the show, whilst others started their careers there. Comedian Lenny Henry was one such star, being the first black performer to appear on it in 1975. In July 2009, Henry explained that he was contractually obliged to perform and regretted his part in the show, telling "The Times" in 2015 that his appearance on the show led to a profound "wormhole of depression", and that he regretted his family not intervening to prevent him from continuing in the show.