We have a saying in our house: 'It's another quiz show with David Mitchell.' It's not an understatement. Right now, on any evening of the week, you can find a quiz show (new or repeated) where David Mitchell is a panellist. QI, 8 out of 10 Cats, Would I Lie To You, Mock the Week - after a while they all start to blend into one. And now of course he's back in the latest series of Peep Show on Channel 4 as well.
Now don't get me wrong. I like watching David Mitchell. He's an extremely witty man, a good actor, and I enjoy his slightly superior stance and sarky quips. He's like a young Stephen Fry. But there's a real danger that he's going to be over-exposed, and there's nothing guaranteed to kill off a career faster than that.