Who Do You Think You Are? (BBC1, 9pm)

PAUL Hollywood is best known as a judge on The Great British Bake Off. He learned his trade at his father’s bakery where he worked as a teenager and has been baking ever since, progressing to become head baker at a number of hotels (including The Dorchester) before turning his talents to television. He lives in Kent with his wife Alex and their son.

“Everyone wants to know where their family’s from. I know we’ve got family in Scotland and bits round the country, so what makes me tick? What’s my genetic structure, where did it come from? I’d be fascinated to find out.”

“I felt close to my grandad. I think it was just part of the way our family was. I know during the war he spent time in North Africa, and I know he spent time in Italy, Anzio, and that is pretty much it. To find out what he did, and what he went through, emotionally that will affect me but I’d love to find out.”

Paul became very close to his maternal grandfather Norman when his own parents divorced. He grew up near them in Wallasey, but despite this he knows little about his grandfather’s life, and particularly his Second World War experiences. Paul remembers that his grandfather had a facial tic, and wants to know if it was caused by his war-time service.

Paul’s journey takes him first to North Africa. Norman had only just completed his training when he found himself in Tunisia as part of the Light Anti-Aircraft division tasked with protecting infantry from enemy air attack during a major Allied offensive to take Tunis from the Germans. Paul then travels to Italy where he discovers his grandfather Norman was part of the landing force that became surrounded by German forces and trapped on the beaches at Anzio for four months, under constant aerial bombardment.

“I always said to myself that I wouldn’t get emotional – it’s difficult to know that he was here. It winds me up that I can’t talk to him about it because I feel now, I feel closer to my grandad now than I have since he died. He’s been here. I just want to talk to him about it and it’s so frustrating that I can’t.

"My nanna and grandad loved each other very much - they were married for 64 years. I don’t know what my nan knew about my grandad’s war effort, but I feel now myself that I know a lot more than I did… I’m just happy to have been to places where I’ve felt close to my Grandad. I understand now how it affected him for the rest of his life.”

Next Paul journeys to the Highlands of Scotland on the trail of his great, great, great, great, grandfather – who he discovers was a policeman employed more for brawn than brains.

"I know about my ancestors on this particular branch of the family that takes me back to Scotland – the McKenzies. And to be here, part of it all, and know it – is magic.”

Coast (BBC2, regions vary)

NICK Crane follows in the footsteps of the Victorians as he seeks out sea caves in Jersey that took nerves of steel to reach, and Ian McMillan is on Scotland's Ayrshire coast where he delves into the story of Sawney Bean, asking whether this cave-dwelling cannibal was simply the product of a wild imagination. Helen Arney meets scientists in a mineral mine off the Cleveland coast who are searching for holy grail of physics – dark matter. Last in the series.

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Very British Problems (C4, 9pm)

BASED on the Twitter feed of the same name, Julie Walters narrates as James Corden, Jonathan Ross, Ruth Jones, Johnny Vegas, Vic Reeves, Nigel Havers, Andrew Flintoff, Josh Widdicombe, Alex Brooker, Stephen Mangan, Susan Calman and Grace Dentin reveal how they struggle against the endless capacity for awkwardness that comes with being British.