8 Out of 10 Cats show has to be edited to fit in its 26-minute slot. From series 9 there is a longer version of the show called "8 Out of 10 Cats Uncut", broadcast a few days later. These rounds only featured in series 1 and the "Big Brother" special shows: Since 2012, crossover episodes between "8 Out of 10 Cats" and "Countdown" have aired. The show follows the format of "Countdown", but is hosted by Jimmy Carr, with permanent contestants Sean Lock and Jon Richardson, as well as two other guest contestants. On 4 January 2013, a special episode of "Deal or No
8 Out of 10 Cats Deal" featuring Carr as host alongside Richardson and Lock aired during another Channel 4 "mash-up night", the story behind it being that Noel Edmonds had been driven to leave when Derren Brown was playing, and was getting all the boxes from lowest to highest. Noel ran away with the £250,000 box, saying that he "spent it all on his shirt". The backstage personnel then took out a hammer and smashed the 'break glass for Jimmy Carr' box, which produced a horn, which was used to call Carr to the set. Joe Wilkinson guest starred as the Banker's assistant. Guests were