6/26 Skabb and Knightriss get carried away, and the Splatty Awards are given out. (R)
17/32 Guest presenter Charles Hanson travels to the Welsh island of Anglesey with the teams.
The warriors face the Pendulum, the Tethered Maze, and the Golden Stairway. (R)
26/40 Three teams battle it out to spot the link between a growing number of clues.
Russell Davies chairs the tenth heat of the nationwide general knowledge quiz.
BBC Radio 4
62/65 Quiz in which contestants try to score as few points as possible. (R)
11/60 Quiz where what contestants have in common is as important as their general knowledge.
Nigel Rees chairs. With Mary Beard, Marcel Theroux, Arthur Smith and Ariel Leve.
BBC Radio 4 Extra
137/160 Quiz featuring the country's top quiz champions. (R)
4/8 With Sheila Hancock, Graham Norton, Paul Merton and Robin Ince. Nicholas Parsons hosts.