I'm not a big fan of celebrity knockout competitions even when they are for charity. I still have bad memories of Ade Edmondson bellowing in Fame Academy and wake up in a hot sweat thinking about Ruby Wax and Jo Brand giving a posse of strangled pussies a run for their money. But I watched Let's Dance for Comic Relief on Saturday night because Robert Webb from my favourite sitcom Peep Show was in it. 

I assumed I wouldn't have to watch for long and he'd soon be eliminated. After all, he was up against kiddie heroes Dick and Dom, an EastEnders duo, Christopher Biggins (who attempted a shameless John Sargeant-type non-dance) and various other high profile celebs. Let's be honest, Webb isn't even the most famous cast member of Peep Show. His ubiquitous panel game-playing partner David Mitchell has that honour.

And let's face it, I always thought voters simply voted for their favourite personalities regardless of their dancing ability. So my gob was positively smacked to see Robert Webb romp home as the winner of the first heat pulling out all the stops with his strangely sexy high-flying, spanner-waving, torso-twirling tribute to Flashdance's What A Feeling.

Many people probably didn't know who Webb was, so I can only put his victory down to his legs. And his Brian May wig. And his very figure-hugging leotard. But Webb also turned out to be an impressive mover with the fluidity of the young Nureyev and the poise of a prima ballerina. This actually wasn't a huge surprise to me. There was a party scene in Peep Show when he did a pretty languid dance too. But it must have come as a shock to the Saturday night family audience. 

Suddenly I'm hooked on a show I thought I could live without. But the pressure is on for another Webbed feat in the final on 14th March. Whether he can top Flashdance remains to be seen, however. Surely only Swan Lake in a tutu joined by David Mitchell in tights can match the sheer eye-popping perfection of Saturday's exploits.