Stephen Fry mulls over some medical matters with Lucy Porter, Ross Noble, Matt Lucas and Alan Davies

Stephen Fry marshals miscellaneous military matters with Sheila Hancock, Jimmy Carr, Jeremy Clarkson and Alan Davies

Stephen Fry meanders about some places which start with an 'M' with Sue Perkins, Sami Shah, David Mitchell and Alan Davies

Stephen Fry mulls over miscellaneous M-themed matters with Cariad Lloyd, Rhod Gilbert, Noel Fielding and Alan Davies

Stephen Fry masters the maths with Sandi Toksvig, Aisling Bea, Susan Calman and Alan Davies

Stephen Fry makes merry with marriage and mating with Jo Brand, Greg Davies, Bill Bailey and Alan Davies

Stephen Fry muddles through the middle show of the middle series of QI with Aisling Bea, Danny Bhoy, Jimmy Carr and Alan Davies

Stephen Fry conjures up some seasonal merriment with Jenny Eclair, Johnny Vegas, Bill Bailey and Alan Davies

Stephen Fry messes with your mind with Sarah Millican, Tommy Tiernan, Josh Widdicombe and Alan Davies

Featuring M foods, with Cariad Lloyd, Dermot O'Leary, Phill Jupitus and Alan Davies

Stephen Fry visits the menagerie for a look at some animals which start with the letter M

With Matt Lucas, David Mitchell and Julia Zemiro

With Josh Widdicombe, Phill Jupitus and Sara Pascoe

With Noel Fielding, Eddie Kadi and Sarah Millican

With James Acaster, Bill Bailey and Jo Brand

With Chris Addison, Sara Cox and Sue Perkins

Compilation from Series M, part 1

Compilation from Series M, part 2