The 8 Out Of 10 Cats regulars play the famous words and numbers quiz with the help of guests. There was also a Deal Or No Deal special
- Channel 4's Funny Fortnight
- 8 Out Of 10 Cats Does Deal Or No Deal; Cats Do Countdown
- Panel Show
- 2012 - 2014 (Channel 4)
- 15 (6 series)
- Jimmy Carr, Sean Lock, Jon Richardson, Joe Wilkinson, Rachel Riley, Susie Dent, David O'Doherty, Clarke Carlisle, Lee Mack
- Jimmy Carr, Gary Delaney, Dominic English, Lee Stuart Evans, Matt Forde, Fraser Steele, Kevin Day, Shaun Pye, Christine Rose, Martin Trenaman, Phil Kerr
- ITV Studios
In 2012, two of Channel 4's most popular quizzes - the topical hit 8 Out Of 10 Cats and the cerebral words-and-numbers game Countdown - came to metaphorical blows as the anarchic comedians of the former took on the brainbox format of the latter.
Jimmy Carr was the host, with Sean Lock and Jon Richardson as the contestants. Jimmy was helped by Countdown regulars Susie Dent and Rachel Riley, and hindered by Joe Wilkinson.
The gang returned to play Countdown a second time later in 2012.
In January 2013, as part of the next Channel 4 Mash Up, Jimmy Carr, Jon Richardson and Sean Lock hijacked an episode of Deal or No Deal. A number of comedians joined in, plus Rachel Riley and Susie Dent again. Joe Wilkinson acted as the Banker's assistant.
April 2013 saw the Jimmy and Jon return to Countdown for a further two games (Sean was away).
A full series of the Countdown variant was then filmed for Summer 2013.