Alexander Armstrong should take over!
Last night's show (22/5/09) was hilarious, and that's been the case ieverytime he's been on, so other than the guests he obviously brings something unique to the show. Personally I think it's because he's a sort of nicer, happier version of Angus Deayton.
Plus he's a comedy writer and performer too, which puts the programme in fairly safe hands with his excellent delivery, whereas the guest presenter format does mean thequality of the show is somewhat erratic.
"Shot on celluloid. Projected onto a screen. What more do ya ƒuckin' want?!"