DA
I had a look around some TV listings sites and most of them have the Helen Lederer episode listed, even the sites that are notorious for not reflecting schedule changes. The only site that didn't was Yahoo, they had Bobby George listed.
http://uk.tv.yahoo.com/listings/bbc-1/2010-08-22/12-05/
As for why, I don't know. The fact that most listings sites had the correct episode listed, makes me think it wasn't a last minute change.
http://uk.tv.yahoo.com/listings/bbc-1/2010-08-22/12-05/
As for why, I don't know. The fact that most listings sites had the correct episode listed, makes me think it wasn't a last minute change.