Who Do You Think You Are? BBC1, 9pm
Every time a new run of the series is announced, viewers are left wondering who will be featured on it. After all this timerumps - and if you need proof of that check out the list of luminaries set to grace this, the 12th season. Great British Bake Off star Paul Hollywood, model Jerry Hall, Last Tango in Halifax cohorts Derek Jacobi and Anne Reid, polymath Mark Gatiss, actresses Frances de la Tour and Jane Seymour, choirmaster Gareth Malone, journalist Frank Gardner and presenter Anita Rani will all feature.