How many shows do they make In one go?

I'm convinced they must film 100's In one day.
Watch it tomorrow,On the Introduction before the opening credits I bet you that the Woman Is wearing a awful yellow coat.
She has been for the last 2 year or so.
Also on the opening introduction the man Is overweight during the Intro and then on the main part he will either be a bit slimmer or alot fatter.

And all the auctions are dated 2007!
http://www.youtube.com/watch?v=1hyH1rxP87Q