Favourite line (not necessarily verbatim, someone please correct me):
Would you mind not farting while I'm saving the world.
Favourite line yet to be uttered (I can only hope for part two):
Chap there with green skin and big black eyes, five rounds rapid.
And I do like the variation on the theme music in Doctor Who Confidential on BBC3. It's in some parallel universe where the Pet Shop Boys are running around in alien rubber suits (no change there, then).