They film it near me, used to see all the audience queuing up in the morning to go in and the local taxi firm they use have some interesting stories! My cousin went to see it once and said JK was having a bit of a laugh at the contestants in the breaks from what I remember!
I've been in the audience for Take Me Out when they filmed some if it up here, a friend got free tickets and there was the lure of the lovely Paddy McGuinness.
It was really interesting seeing how it worked, we were there for a full evening just for one 1 hours show (less breaks) and they had to refilm quite a few bits to do it better or for when words were forgotton or got wrong etc... lots of make up touch ups and fiddling with lights and cameras and such too.
They had a great warm up guy to keep the audience amused and on form for clapping, cheering, shouting, ooohing etc... when not filming and he was hilarious!