8 Out of 10 Cats Does Countdown Series 11 Episode 7 David Mitchell, Cariad Lloyd, Russell Howard, Sam Simmons ( Air Date 2016-11-05 ) Genre Comedy, Reality, Talk category. Overview "Jimmy Carr hosts, David Mitchell and Cariad Lloyd take on Jon Richardson and Russell Howard. Sam Simmons joins Susie Dent in Dictionary Corner, while Rachel Riley flips the tiles.".