10/32 Two teams of friends do battle to take the winners' crown in Builth Wells.
Guests in this edition are natural history TV presenters Chris Packham and Nick Baker. (R)
4/20 Three Earthtwerps from Swindon journey deep into space to take on Ludus. (R)
Nick Knowles challenges contestants to achieve perfection and win £1,000.
23/65 Quiz in which contestants try to score as few points as possible. (R)
67/100 Jeremy Vine hosts a general knowledge quiz featuring the UK's top quiz champions.
6/6 Crime writers Frances Fyfield and Peter N Walker try to solve a medical mystery.
BBC Radio 4 Extra
13/21 John Norman MacLeod chooses his favourite cook between Marissa MacDonald and Magz MacLeod. (R)
2/6 Justin Moorhouse, Rob Deering and Tom Allen hit London in Rhod Gilbert's comedy quiz.