QI

Stephen Fry and guests look at all manner of inventions.

With Julia Zemiro, Tim Vine, Rob Brydon and Alan Davies.

Christmas edition with Sarah Millican, Phill Jupitus, Danny Baker and Alan Davies.

With Sarah Millican, David Mitchell, Rev Richard Coles and Alan Davies.

With Professor Brian Cox, Rhys Darby, Jason Manford and Alan Davies.

With Julian Clary, Ross Noble, Bill Bailey and Alan Davies.

With Greg Proops, David O'Doherty, Reginald D Hunter and Alan Davies.

With Julia Zemiro, Sue Perkins, Ross Noble and Alan Davies.

With Jo Brand, John Sessions, Dara O Briain and Alan Davies.

With Shappi Khorsandi, Ross Noble, Johnny Vegas and Alan Davies.

With Cal Wilson, Jack Whitehall, Jimmy Carr and Alan Davies.

With Susan Calman, Sandi Toksvig, Bill Bailey and Alan Davies.

With Katy Brand, Sue Perkins, David Mitchell and Alan Davies.

Stephen Fry looks at journeys with Cal Wilson, Rob Brydon, Phill Jupitus and Alan Davies.

Stephen Fry looks at jam, jelly and juice. With Jo Brand, Liza Tarbuck, Sue Perkins and Alan Davies.

Stephen Fry investigates the letter J with Victoria Coren, Bill Bailey, Jimmy Carr and Alan Davies.