Great British Bake Off

Who Do You Think You Are? line up announced

Mark Gatiss

The twelfth series of the genealogy programme will touch on almost a thousand years of history from the Tower of London to the Punjab in India, via the Wild West of the US.

Actor Sir Derek Jacobi uncovers a background of contrast, from humble roots in Walthamstow to the excesses of Louis XIV's royal court in France, while model Jerry Hall traces her pioneering ancestors from the cotton mills of Oldham to the plains of Texas.