What mysteries are hidden in old family photographs? Can mouldy old documents reveal secrets, long forgotten by family members? What role does family history play in our daily lives? Can a person know who they really are? Who Do You Think You Are is a landmark documentary series chronicling the social, ethnic and cultural evolution of national identities through the personal family histories of prominent celebrities. During each episode one of Britain?s best-loved celebrities traces their family tree to reveal the surprising, extraordinary and often moving stories of their ancestors. At the same time the series has a more universal purpose: to offer an alternative way of looking at the history of modern Britain and to inspire viewers to consider their family's contribution to the making of Britain. For this reason each celebrity has been chosen so that their journey unlocks a different theme in British history.Celebrities include:Jeremy Paxman, Sheila Hancock, Stephen Fry, Julian Clary, Jane Horrocks, Gurinder Chadha.