Bill Oddie is the first celebrity to undergo the family tree search, as he endeavours to find out more about his mother, who was institutionalised when he was a child.

Actress Amanda Redman explores her roots.

Actress Sue Johnston explores her roots.

Jeremy is determined to find out if his mother was descended from the Kilner Jar people, and if they were, where all the money had gone.

Ian finds out more about the part his grandfathers played in the wars of the 20th Century.

Moira Stuart's family tree exploration takes from the Highlands of Scotland to the West Indies.

David explores his Jewish roots and discovers some Orthodox Jewish relatives in London.

Lesley explores her family tree in Yorkshire.

Meera's exploration takes her to the Punjab.

Was Vic's father a bigamist?

Barbara roots extend through East London and Suffolk.

Robert's roots take him back to Derbyshire.

Colin's roots extend to Panama, Jamaica and Scotland.

David's quest to discover his family take him to the Isle of Mull, and then on to Londonderry, to confront an unexpected side to his ancestors.

David's roots are in Armenia.

What will Nigella find in her family tree?

Does Jeremy have roots in Ireland?

Julia's journey takes her to France and Jordan.

Natasha travels to Cape Town in search of information about her father's involvement with the anti-apartheid movement during the 1960s. Later, after researching a possible connection with King George the Third, she travels with her Australian cousin Benni to Belarus where some disturbing discoveries are made about the persecution of her Jewish ancestors.

John looks into his great grandmother's parentage.

Griff Rhys Jones looks at both sides of his family's history, learning about the early British railway workers and trying to work out whether relatives really died in a train crash or there might be darker family secrets.

Carol explores her family tree.

Alistair McGowan explores his heritage from his father's side, investigating what 'Anglo-Indian' means by a journey to India.

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