Who Do You Think You Are? BBC1, 9pm
Following in the footsteps of Julie Walters, Sheridan Smith, Mary Berry and Billy Connolly, the last in the current series focuses on Twiggy. Four decades ago, Neasden-born Lesley Hornby, as she was known, found her life transformed when a reporter spotted her photo on the wall of a London hairdresser, and she was dubbed the ‘face of the 60s’. Suddenly the 16-year-old was catapulted into life as a supermodel, travelling the world. In the 100th episode of the genealogy show, Twiggy examines her family’s past. Last in the series.