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John Bishop's Who Do You Think You Are

5 December 2012 Last updated at 10:57 GMT

Stand-up comedian John Bishop has traced his family tree in the latest episode of BBC One's Who Do You Think You Are.

He told BBC Breakfast that he made some "interesting" discoveries about his great great grandfather's connection to the entertainment business.

The episode will be shown on 6 December, BBC One at 9pm.