John Lloyd and Sarah Millican welcome Rufus Hound, Sir Tim Smit and Doris Vickers.
Russell Davies chairs the nationwide general knowledge quiz.
5/8 Miles Jupp is joined by Susan Calman, Zoe Lyons, Andrew Maxwell and Michael Deacon.
4/6 Graham Linehan, Isy Suttie and Holly Walsh compete to give the best in wrong answers.
6/6 Three students from the University of Northampton take on their professors.
BBC Radio 4 Extra
6/6 Simon Mayo discovers which generation is the funniest.
Jay Rayner hosts the culinary panel programme from London's Billingsgate Market.
John Lloyd and Sarah Millican welcome Ken Dodd, Dr Hannah Fry and Greg Jenner.
1/6 James Walton takes the chair. Guests are Lynne Truss and Mark Billingham.
Four more competitors join Russell Davies for the general knowledge quiz.