http://www.digitalspy.co.uk/showbiz/...and-prank.html
We knew that it was coming already from insiders, c4 sales, etcetera. But this is the first proper confirmation.
Also looks like it starts on the first Friday after new years and David Irving was contacted:
http://www.thejc.com/node/7486
But they may just be guessing and all schedules are TBC for Jan.