Most expensive stunt of the evening - the BBC's animated CGI-esque party leaders wandering down a virtual Downing Street. There is marvellous BBC gossip about this. Apparently Charles Kennedy was the only one of the party leaders who agreed to have his head made into a rubber cast for the purpose. Michael Howard said he was willing to "if Tony Blair would do it too".
But, not surprisingly, the Prime Minister did not consent to letting the BBC cover his head in molten rubber - so Howard and Blair are modelled on look-alikes - which raises the question where do you find a Michael Howard lookalike and how much would it cost?