In each episode a well-loved celebrity traces their family tree to reveal the surprising, extraordinary and often moving stories of their ancestors. Local versions have been made in Australia, Canada, Spain, Israel, France, South Africa, Sweden and Germany. The US series is currently in production for NBC. To find you more about Who Do You Think You Are? please visit www.bbc.co.uk/whodoyouthinkyouare/, for more on Wall to Wall please visit www.walltowall.co.uk.