"8 Out of 10 Cats Does Countdown" is a British television show that combines elements of a comedy panel game with the classic quiz show Countdown. The program features two teams, each consisting of a comedian and a celebrity, who compete in various word and number challenges inspired by the original Countdown format. The show is hosted by Jimmy Carr, who guides the teams through rounds that include creating the longest words from a selection of letters and solving mathematical problems. Regular features include the presence of the Dictionary Corner, where a lexicographer provides insights and humor related to the words used in the game.