Claudia Winkleman (original host)
Captains: David Mitchell and Rhys Thomas
CHX (Channel X) for E4, 2002-3?
Actually quite inventive Superfan Quiz-type quizzer, with Witty Winkleman and - after an unexplained staff change - Lauren Laidback Laverne. Some of the rounds were quite inventive - such as trying to guess the name of a song based on a video musical interpretation by some school children, but sometimes the team captains got in the way just a bit too much.
And look at David Mitchell! Isn't he thin!