Doctor Who (BBC 1/HD | 7:20pm to 8:10pm | Saturday 15th April 2017)

Two worlds collide when the Doctor meets Bill, and a chance encounter with a girl with a star in her eye leads to a terrifying chase across time and space. Bill’s mind is opened to a universe that is bigger and more exciting than she could possibly have imagined. But who is the Doctor, and what is his secret mission on Earth?

Top Gear (BBC 2/HD | 8:00pn to 9:00pm | Sunday 16th April 2017)

Matt LeBlanc gets to grips with the fire-breathing Mercedes-AMG GT R supercar. Elsewhere, Chris Harris and Rory Reid journey across Cuba in a pair of second-hand sports cars, while comedian Ross Noble takes to the Top Gear track in the Reasonably Fast Car.

Inside the Tube: Going Underground (Channel 5/HD | 9:00pm to 10:00pm | Monday 17th April 2017)

London’s Metropolitan Line was the world’s first underground railway, and is still used by 70 million passengers each year. Rob Bell discovers how the capital’s overcrowding problem was the necessity that prompted this hitherto unthinkable transport innovation.

Me and My Dog (BBC 2/HD | 8:00pm to 9:00pm | Wednesday 19th April 2017)

Chris Packham hosts a physical and mental competition in the Lake District, where eight owners and their dogs compete together in a series of challenges, all in a bid to make it to the grand final. This episode’s challenges are all designed to test the owners’ ability to immerse themselves in their dog’s world.

Mind Over Marathon (BBC 1/HD | 9:00pm to 10:00pm | Thursday 20th April 2017)

Two-part film in which a group of ten unlikely runners living with different mental health issues are brought together by Nick Knowles to train for the ultimate test – the 2017 London Marathon. The group come from all over the country to meet for the first time at a training camp. Among the runners is Rhian, a mum-of-three who lost her one-year-old son to pneumonia and five days later lost her husband as well. She struggles with PTSD and anxiety and can’t run on her own when she starts this process. Shereece had postpartum after the birth of her first child and struggles with depression and panic attacks, and persuading her family that mental health problems are a real illness. Brighton barman Jake has struggled with depression, but wants to try running as a way to help cope with his illness. The episode follows them up to the point of getting ready for the challenge of running their first 10k race – an important milestone if they are to make the marathon starting line.

Dial “B” for Britain: The Story of the Landline (BBC 4/HD | 9:00pm to 10:00pm | Thursday 20th April 2017)

Timeshift journeys back to the age of the landline – a distant era when phones weren’t pocket-sized wireless devices, but bulky objects wired into our homes and workplaces. Over the course of 100 years, a communications network was rolled out to join up Britain, bringing commercial and social change in its wake. Yet despite ongoing technical innovation, the phone service often struggled to meet demand. From the speaking clock to the Trimphone, the first public call boxes to the Post Office Tower, this is the story of how Britain got connected, told by the operators and engineers themselves, and featuring rarely seen archive footage.

Tony Robinson: Coast to Coast (Chnanel 5/HD | 8:00pm to 9:00pm | Friday 21st April 2017)

Tony Robinson explores the 200-mile coast-to-coast walking trail made famous by Alfred Wainwright. En route to Robin Hood’s Bay, his final destination on the North Yorkshire coast, Tony meets people who are determined to keep the local industries alive, including a steam railway. He also visits RAF Fylingdales, a family-run bakery and the area’s last shipyard in Whitby, and enjoys a day of whale-watching.

The Last Leg (Channel 4/HD | 10:00pm to 11:05pm | Friday 21st April 2017)

The award-winning satirical comedy continues. Adam Hills, Alex Brooker and Josh Widdicombe examine the biggest, most entertaining news stories via the #isitok Twitter hashtag, where viewers tweet in edgy current affairs questions that other shows might duck. In this edition, Alan Carr and Tinie Tempah help the team to dissect the week’s events.

All TV guide information taken from DigiGuide — www.getdigiguide.tv/?p=1&r=15119.