15/31 Subjects are Marc Bolan, the Empress of Ireland, the Sasanian Empire and 'Allo 'Allo.
BBC Two Northern Ireland only
With Dean Jackson. The Beat Introducing: The best of under the radar local music.
BBC Radio Derby
BBC Radio Leicester
BBC Radio Lincolnshire
BBC Radio Nottingham
BBC Two Wales only
8/18 Stephen Fry, Josh Widdicombe, Aisling Bea, Tony Hawks and Alan Davies look into love.
BBC Two except Northern Ireland
Tim McGarry, Colin Murphy, Jake O'Kane and Neil Delamere are joined by Andrew O'Neill. (R)
10/13 Paul Gambaccini chairs the first semi-final of the general knowledge music quiz. (R)
BBC Radio 4
Peter Jones tests the knowledge of Charles Hawtrey, Tommy Trinder and Ron Goodwin.
BBC Radio 4 Extra