Tim Rice and Robin Bailey battle Willie Rushton and Bob 'The Cat' Bevan.
BBC Radio 4 Extra
6/8 The antiques quiz visits Syon House in London.
4/6 The guest panellists are former poet laureate Sir Andrew Motion and author Sue Limb.
7/8 With Sheila Hancock, Robin Ince, Paul Merton and Graham Norton. Nicholas Parsons hosts.
BBC Radio 4
The first semi-final in the current season of the quiz, with Russell Davies.
Dean Jackson and the team with The Vaccines, Marika Hakman, Clubs, Aztecs and Farrah Joy.
BBC Local Radio
6/7 Sandi Toksvig and Jeremy Hardy are joined by Fred MacAulay, Hugo Rifkind and BJ Novak.
Steve Bunce, Rachel Brown-Finnis, Dougie Anderson & Justin Moorhouse join Georgie Ainslie.
BBC Radio 5 live
6/6 John Lloyd and Dave Gorman receive exhibits as donations to their infinitely vast museum.
This is when your weekend really starts. Join in on 0370 143 1333 (national rate).