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Larry Lamb digs up his ancestors

Who Do You Think You Are?

BBC1, 9pm

There's plenty of drama tonight as actor Larry Lamb (left), best known as former EastEnders baddie Archie Mitchell, encounters a long-lost relative in America he never knew existed.

He delves deep into his ancestry, focusing his attention on his orphaned mum who was adopted as a baby. Little is known of her birth parents, but the maternal line throws up many surprises.