Sandi Toksvig looks at a range of unrelated 'U' topics with Tom Allen, Chris McCausland, Lou Sanders and Alan Davies.
Rob Brydon and team captains Lee Mack and David Mitchell are joined by guests Shirley Ballas, Steven Bartlett, Josie Gibson and Chris McCausland.
An episode of previously unseen material from Series 16, featuring Bob Mortimer, Steve Pemberton, Shazia Mirza, Motsi Mabuse, Henning Wehn, Bez, Ellie Simmonds, Snoochie Shy and Shirley Ballas.
Sorting the fact from fiction this week are guests John Cooper Clarke, Judi Love, Chris McCausland and Caroline Quentin.
Sandi Toksvig hosts a Christmas special with Aisling Bea, Chris McCausland, Gyles Brandreth and Alan Davies.
