Stephen Merchant and Christina Ricci are a great TV double act

Forget Ricky Gervais, the really clever one in the double act is Stephen Merchant.

While Ricky just wants the attention on him the whole time, Stephen is hilarious - as he proved on Graham Norton's chat show, by far the funniest thing on TV this week so far.

Graham knows how to get the most out of his guests, but the real skill comes in booking celebs who aren't afraid to talk rubbish and make fools of themselves.

So we had Christina Ricci - love, love, love her - discussing the perils of filming with monkeys and how she looks like a turtle in her Yearbook Photo.

Then we had Stephen, all 6ft 7in of him, attempting a cartwheel.

Now that's what I call entertainment!