QI XL

What did Typhoid Mary die of? Stephen Fry poses the klaxon-baiting questions on medical matters to Lucy Porter, Ross Noble, Matt Lucas and Alan Davies.

Before the Sandi Toksvig coup, general of knowledge Stephen Fry soldiered on to fire posers at Sheila Hancock, Jeremy Clarkson, Jimmy Carr and Alan Davies.

Sue Perkins, Sami Shah, David Mitchell and Alan Davies join Stephen Fry on a trip to the Mountains of Kong, Mummerset and Brown Willy. Stop sniggering at the back.

Smart aleck Stephen Fry chairs the quiz that revels in ignorance. Cariad Lloyd, Rhod Gilbert, Noel Fielding and Alan Davies are enlightened on moths and moss.

Stephen Fry dispels the factoids that don't quite add up in the panel show that's tougher than algebra. With Sandi Toksvig, Aisling Bea, Susan Calman and Alan Davies.

The stimulating panel show that weds comedy and knowledge. Stephen Fry enlightens Jo Brand, Greg Davies, Bill Bailey and Alan Davies on the joys of sex.

Stephen Fry reveals everything you know is wrong. Guests Aisling Bea, Danny Bhoy, Jimmy Carr and Alan Davies muddle through questions on monocles and manholes.

Old scrooge Stephen Fry docks Jenny Eclair, Johnny Vegas, Bill Bailey and Alan Davies points in this XL-mas special. And can you spot the Morse code in Morse?

Stephen Fry messes with the minds of Sarah Millican, Tommy Tiernan, Josh Widdicombe and Alan Davies, pooh-poohing everything they thought they knew.

Witty panel show. Stephen Fry gives us food for thought as Cariad Lloyd, Dermot O'Leary, Phill Jupitus and Alan Davies make a right meal of the answers.

Stephen Fry asks Sue Perkins, Romesh Ranganathan, Bill Bailey and Alan Davies beastly posers on moose, monkeys and moustachioed toads in the highly evolved quiz.

Enlightenment on the Middle Ages with Stephen Fry. Julia Zemiro, Matt Lucas, David Mitchell and Alan Davies hear that pre-fabs date to pre-Ikea times!

The smash-hit quiz show that caught on in a flash. Beastly quizmaster Stephen Fry is an eerie sight for Sara Pascoe, Josh Widdicombe, Phill Jupitus and Alan Davies.

Quite complex quizzing. Things get messy as Stephen Fry learns whether Sarah Millican, Eddie Kadi, Noel Fielding and Alan Davies know their mugwumps from their mullipuffs.

Mind-improving miscellany with mine of information Stephen Fry, who's also fond of a magic trick. With Jo Brand, James Acaster, Bill Bailey and Alan Davies.

The witty quiz that thrives on fallacies. Sue Perkins, Sara Cox and Chris Addison guest as departing host Stephen Fry docks Alan Davies points one last time.