NE
This week's Dead Ringers (Radio 4 version - which I think is better than the TV version) had great fun with the whole Doctor Who thing, particularly their auditions for a new Doctor:
Ozzy Osbourne
Anne Robinson (who then went on to play 'The Weakest Evil Creature' - where the Cyberman voted the Dalek out (as sink plungers don't really frighten him) and the Dalek then complained about the humiliation of the walk of shame - 'does it usually have three flights of stairs?')