I amend my previous answer to the question about objecting to "yes, in hindsight I object to him having been there, on the grounds that it made for a lot of BNP-bashing and pointless grandstanding, and squandered an opportunity for an interesting debate about immigration between representatives of the major parties - and the lady from the British Museum who clearly had some interesting things to say as well".
Perhaps a better selection of questions would've helped as well, though I guess the presenter can't help it if all the audience questions are flogging the same dead horse.