QI

There's bound to be ribaldry in an episode titled Knees and Knockers so lie down on your antique fainting couch right now as Stephen Fry and the teams get blushingly saucy. But it's all good fun and even educational. Come on, don't tell me you're not curious about where in the human body the "end-bulbs of Krause" are? Or the pores of Kohn? (Clue: it's not the title of a Star Trek movie.)

Elsewhere, David Mitchell has one of his Would I Lie To You?-type comic rants, this time about, of all things, the supposed idiocy of pandas. We learn why robins are associated with Christmas, the rules for the driving of cars in early 20th-century Pennsylvania and why red kites are called red kites, even though they aren't red.

QI: some quite interesting facts about seashells

A quietly intriguing column from the brains behind QI, the BBC quiz show. This week: QI wants a word in your shell-like.

BBC rejects claim Stephen Fry 'trivialised' child abuse

The BBC Trust has rejected a complaint that Stephen Fry "trivialised" child abuse during an episode of QI in which he recited a limerick about a chaplain's desire for a choir boy.

Behind the scenes at Radio Times QI photo shoot

The comedy duo lark around behind the scenes of their Radio Times photo shoot.

QI: some quite interesting facts about birthdays

A quietly intriguing column from the brains behind QI, the BBC quiz show. This week: QI's birthday party.

Alan Davies on playing the QI fool

"I don't remember any of it! It just goes in one ear and out the other"

QI's trademark blend of improving silliness is in full flow, as the teams absorb (or occasionally, recall) obscure facts on the subject in hand - inventions. It's a rich seam: jerry cans, electric jock straps ("Why have they gone out of fashion?" wonders Jeremy Clarkson), ear-dryers, windscreen wipers, and so on. In the section on the Slinky spring-toy, each panelist gets a mini-staircase and their own Slinky to experiment with, though Alan Davies is almost wilfully hopeless with his, and Sandi Toksvig wants to keep the staircase to reach shelves in her kitchen.

It's all as amiable and informative as ever: Toksvig tells us that it was a woman who invented both the windscreen wiper and the rear-view mirror. Clarkson has no comment.

Stephen Fry interview

"The beauty of the brain is that you can be as greedy as you like for knowledge and it doesn't show"

Davies: Contestants on QI know the questions in advance

Alan Davies, the self-confessed "QI dunce", has let slip that the show's guests have time to prepare their responses - confirming that they get to see the questions in advance.

QI: some quite interesting facts about the sun

A quietly intriguing column from the brains behind QI, the BBC quiz show. This week: QI shows some solar flair.