BBC2 in the UK announced that a second series of Wall to Wall's factual personal genealogical format Who Do You Think You Are? will arrive on the network next year. New celebrities who will explore their ancestry on the TV series include: Stephen Fry, Jane Horrocks, Jeremy Paxman, Julian Clary, Gurinder Chadha (Director of Bend it Like Beckham), and Sheila Hancock.
Who Do You Think You Are? was BBC2's highest-rated factual entertainment show of 2004, with a peak of 5.8 million viewers and a 23.8% share. The format has also been sold to territories including Germany, Poland, Sweden, Australia, France, Italy, Spain, and Canada.
To read about the celebrities' explorations from the 2004 series, check out http://www.nationalarchives.gov.uk/familyhistory/bbc/default.htm. This page also has a link from which you can download a nicely done companion booklet on Family History: The Basics and Beyond.