Our choice of programmes to watch from Saturday

SATURDAY

The Wall Versus Celebrities (BBC1, 6.40pm)

Former England and Liverpool winger John Barnes teams up with Sky Sports pundit Chris Kamara as they attempt to defeat the formidable Wall and win a decent amount of cash for charity – but one mistake could see them losing everything.

SUNDAY

Million Pound Mega Motorhomes (Channel 5, 8pm)

If you have ever fantasised about owning a mega motorhome, now's your chance to dream even bigger – they are becoming more luxurious and creative than ever. This programme takes a journey into the country's most impressive motorhomes, uncovering the secrets of the companies who manufacture these elite machines, visiting a trade event where must-have gadgets tantalise owners, and meeting the motorhome makers who can create bespoke holiday homes for a million-pound price tag.

MONDAY

Unforgotten (ITV, 9pm)

Nicola Walker and Sanjeev Bhaskar return for a fourth series of the acclaimed crime drama, which begins when a dismembered body is found in a North London scrapyard. Thanks to a distinctive tattoo, the team, led by Sunny, identify the victim as Matthew Walsh, who went missing 30 years earlier. They also discover that the body had been frozen and was transported to the scrapyard in a freezer purchased by the recently deceased Robert Fogerty, who has a drink-driving conviction from March 30, 1990 - the night Matthew disappeared...

TUESDAY

Million Pound Pawn (ITV, 8.00pm)

In the first episode, pawnbroker Ray meets a business owner who wants a big-money return on his exclusive Lamborghini, but will Ray be able to meet the client's expectations and make a profit? In Sheffield, pawnbroker Dan meets divorcee Fran, who is looking to sell a watch she inherited. If it's genuine, it could raise a life-changing amount, but the market in fakes is booming. Meanwhile, a former 80s pop star meets Kathy, one of just a few female pawnbrokers in the industry, to raise some cash.

WEDNESDAY

Murder in a Small Town (C5, 9.00pm)

In 2003, Luke Mitchell was accused of brutally murdering 14-year-old schoolgirl Jodi Jones. He maintains his innocence to this day and now, after 17 years, two former detectives who now work as private investigators work together to re-examine the police and prosecution's case against Mitchell. In this new two-parter, they uncover information which could possibly cast doubt on the verdict, including new evidence which emerged from a witness who was living in the area at the time, and details of another male's DNA found at the scene.

THURSDAY

Your Garden Made Perfect (BBC2, 8.00pm)

Some people may dream of having a swimming pool, but for Suzanne and Andrew, it's more of a nightmare – mainly because the giant pool in their Plymouth back garden is derelict. They've approached landscaping companies about sorting it out, but the businesses have declined to take the plunge, and the couple can't afford to simply fill it in. So, how will designers Tom Massey and Pop Probert transform this unique outdoor space?

FRIDAY

Gogglebox (C4, 9.00pm)

Back for a new (17th!) series, Britain's favourite armchair critics return to cast their wry eyes over the week's small-screen events.