Sean Lock appeared as the first team captain from series 1 to 18; he was replaced by Rob Beckett at the beginning of series 19.
Every week, the captains are joined by two celebrities.
However, in the past few years, due to Jimmy Carr's stand-up schedule, certain episodes are pretaped and broadcast later as "special" episodes dealing with a particular subject.
2015 was the only year since the show began in 2005 in which a full series was not broadcast.
Yesterday, HBO president Casey Bloys confirmed to TVLine that no current Game of Thrones characters will appear...
read more Emma Watson has spoken out about her experiences of sexual harassment in Hollywood, describing the issues as “systemic” and “structural”.
8 Out of 10 Cats: Claws Out is a ninety-minute collection of highlights from the first few series which features deleted scenes considered too offensive to be aired.
No current Game of Thrones characters will feature in the upcoming spin-offs.
8 Out of 10 Cats Does Countdown however aired for a total of 24 episodes throughout 2015.
The current rounds featured on 8 Out of 10 Cats are: Until series 8 there were four rounds during the game, but it has since been reduced to three.
The points often do not add up correctly, as the show has to be edited to fit in its 26-minute slot.
For the 'Most Memorable Year' theme, the Alabama-born R&B belter chose to celebrate 2005 which was the year his maternal grandmother and stepgrandfather officially adopted him.'My biological mother had me when she was 16 and struggled with substance abuse. She wasn't fit and ready to be a mom and take care of a kid,' the Liv and Maddie actor explained.'My grandparents took me out of that world. They're the best, so this is dedicated to them.' Pat and Rodney Fisher - both 56 - beamed with pride at their grown boy from the studio audience during the performance.
The Liv and Maddie actor explained: 'My biological mother had me when she was 16 and struggled with substance abuse. She wasn't fit and ready to be a mom and take care of a kid.
From series 9 there is a longer version of the show called 8 Out of 10 Cats Uncut, broadcast a few days later.