Our day-by-day choice of programmes to watch this week.

ON DEMAND: Hi-De-Hi! (BritBox, from Thursday)

By 1980, Jimmy Perry and David Croft were among Britain's top comedy writers. Dad's Army, which ended in 1977 after nine years on our screens, had made their names, while It Ain't Half Hot Mum, which ran for seven, was drawing to a close. Both series had been inspired by their own experiences, in particular those of Perry, and their next project would be too.

Perry was a redcoat at Butlins after leaving the army, and channelled his memories into the show. Hugely popular throughout the 1980s, Hi-De-Hi! is now returning to our screens courtesy of BritBox. Prepare to be amused by a range of wonderful characters, including world weary comedian Ted Bovis (Paul Shane), his naive sidekick Spike (Jeffrey Holland), chief yellowcoat Gladys Pugh (Ruth Madoc) and cleaner/wannabe superstar Peggy Ollerenshaw (Su Pollard).

SATURDAY: The Voice UK (ITV, 8.30pm)

The semi-final is here at last. A dozen of the acts who have made it through so far are within touching distance of landing a coveted recording contract. Before they can do that, however, they must impress coaches will.i.am, Tom Jones, Olly Murs and Anne-Marie one more time.

Harry and Meghan vs the Monarchy (C5, 9pm)

Channel 5 loves broadcasting royal-themed documentaries on Saturday evenings. Here we learn more about how the couple first met, what brought them together and tales from their seemingly fairy tale romance. But then the programme takes a darker turn by charting their issues with public life and their decision to quit the UK and settle in California. It also asks whether their determination to remain in the US will cause further controversy, for them and the monarchy.

SUNDAY: Attenborough's Life in Colour (BBC1, 7pm)

Sir David Attenborough reveals some of the natural world's most cunning tricksters and masters of disguise. On Australia's Great Barrier Reef, a blue-striped blenny changes its colours to deceive and launch an attack, while the Bengal tiger uses its orange stripes in a surprising way to hide from its colour-blind prey.

McDonald & Dodds (ITV, 8pm)

The eponymous duo are called into investigate when a birthday weekend away goes devastatingly wrong. Angela and four of her friends – best friend Doreen, her sister-in-law Melissa, her sister Cath and her new stepmum Hilary – travel down from Glasgow to celebrate in Bath. The ladies meet a group of young rugby players and when the nightclubs close, everyone ends up at a house party at an upscale mansion.

The next morning, they wake to hangovers from hell, and when one of the rugby players is found dead on the railway lines near the house, all the party-goers become suspects. The victim, Dominique Aubert, died after drinking what appears to be a date rape drug, making McDonald and Dodds unsure as to whether he was even the intended victim. Sharon Rooney, John Thomson and Natalie Gumede are among the guest stars.

Funny Festival Live (BBC2, regions vary)

We all know that members of the performing arts have had it tough during the past year. Some comedians have found ways around Covid restrictions by doing stand-up online or hosting their own podcasts, but there's nothing quite like getting back on stage. That's perhaps why so many have jumped at the chance of appearing in this new series, which is broadcasting each evening for the rest of the week. The programmes feature a mix of established names and up-and-comers, with the likes of Jason Manford, Jo Brand, Darren Harriott, Dane Baptiste, Joanne McNally, Rachel Fairburn and Chris McCausland taking part.

MONDAY: Would I Lie to You? (BBC1, regions vary)

The comedy panel show never fails to raise a smile. The current series has been its 14th, and while you imagine that long-running team captains David Mitchell and Lee Mack's store of fibs is getting low, there seems to be plenty of mileage in the format yet. The series draws to a close next week, so its makers are taking the time to show us some previously unseen footage that didn't quite make it into the weekly show. We're going to be very disappointed if top guest Bob Mortimer doesn't make an appearance at some point.

Unforgotten (ITV, 9pm)

Andrews may not be convinced that there is enough evidence to tie four police officers to the Walsh murder, but Cassie is. Suddenly, after seemingly being within touching distance of finding the killer, the duo have more questions than answers – and they still don't have the rest of the body, which could contain vital clues.

Harry Hill's Lonely Island (BBC2, 10.40pm)

Last year, the big-collared funnyman brightened up our lockdown experience by making a memorable appearance on Grayson's Art Club and fronting his own World of TV series, in which he poked fun at various programmes and genres. Now he's back in a quartet of short and silent black and white comedy shows. Hill has written and directed each of them; he also pops up in leading roles. They are all set in a different historical period, from prehistoric times to the Napoleonic era.

TUESDAY: The Great Celebrity Bake Off for Stand Up to Cancer (C4, 8pm)

Bake Off has a particularly impressive track record when it comes to attracting big names – and for this latest run of specials, it's really outdone itself. Future episodes will feature James McAvoy, Jade Thirlwall and Dizzee Rascal, but we begin with Star Wars actor Daisy Ridley, comedian Rob Beckett, pop star Alexandra Burke and comedian Tom Allen. In theory, Allen should have an advantage - he co-hosts Bake Off: The Professionals and is a regular on An Extra Slice. But will one of the other celebs impress judges Paul Hollywood and Prue Leith?

The Painter and the Thief (Sky Arts, 9pm)

This Norwegian documentary, directed by Benjamin Ree, begins with a brazen daylight robbery, as two men are caught by security cameras, breaking into a gallery and stealing two paintings by Barbora Kysilkova. One of the men, Karl Bertil-Nordland, is caught and tried. At the hearing, Barbora works up the courage to speak to him, asking if they can talk, and quickly thereafter asking if she can paint him. As he sits in her apartment, they talk about their lives and Bertil claims to not remember a thing about that day. Over the years, we get to see how the relationship between the artist and her muse developed.

Caroline Aherne at the BBC (BBC1, 9pm)

Her last role before her untimely death in 2016 was as the narrator of Channel 4's Gogglebox, but Caroline Aherne will nevertheless always be associated with the BBC. After starting out on radio in her native Manchester and making a handful of brief TV appearances, she first made her mark as a pensionable mock chat show host in The Mrs Merton Show; the character also had her own all-too-brief sitcom Mrs Merton and Malcolm, alongside Craig Cash. Aherne was a member of The Fast Show cast before she and Cash scored their biggest hit with The Royle Family. In this celebration of her career, her old pal John Thomson introduces clips from them all.

WEDNESDAY: Kirstie and Phil's Love It or List It (Channel 4, 8pm)

The duo look back at two very unique homes that required very different solutions. In Purley, Croydon, Christine Attwood and Tony Congdon have been battling over the future of their unusual bungalow for the best part of a decade. Behind the curtain from the sitting room into the lounge lurks something quite extraordinary, leaving Kirstie feeling like she's been chucked in at the deep end. Then, in Larne in Northern Ireland, Catherine and Nigel Finch are also at loggerheads over their dated, 1970s-style bungalow.

Police Interceptors (C5, 8pm)

Believe it or not, this new run is the 19th series of the documentary following the work of a high-speed police interception unit. The first episode reveals why it remains so popular, as there's plenty of action for Nottinghamshire's traffic units. The firearms team mobilises to tackle a suspect armed with a pistol, and hours into a nerve-shredding siege, the man emerges with a handgun and fires. Meanwhile the members of the knife crime team head to a park to track down a suspect on a bike.

DNA Journey (ITV, 9pm)

Last year, Ant and Dec used DNA and genealogy to explore their roots in a two-part documentary, and now they are giving other celebrity pairings a chance to do the same. First up are old A League of Their Own mates Freddie Flintoff and Jamie Redknapp, who set off on a road-trip that will take them from north to south. As a proud Lancastrian, Freddie's biggest fear is that he may discover a DNA link to Yorkshire, so what sort of surprise awaits him at Wakefield Mining Museum? And could be he about to uncover a royal connection? Meanwhile, Jamie's journey takes him to the East End, where he's about to presented with the key to a mystery that has remained unsolved for generations. There's also a family link to Tottenham Hotspur, and it doesn't involve Jamie's dad, Harry.

THURSDAY: The Dog House (C4, 8pm)

In the first episode of the new run, an eight-stone Newfoundland makes a favourable first impression on the Coxon family, but staff are worried that his habit of showering everyone with a spray of slobber may take some of the gloss off. And nine-week-old French bulldog Kevin competes with a nervous terrier to win the hearts of loved-up couple Ryan and Katie.

Your Garden Made Perfect (BBC2, 8pm)

Mandy and Chris are very happy in their Victorian home in Manchester but they have a common problem - their garden is overlooked on all sides. They have considered adding hedges and trees to give them more privacy, but they don't want to lose the light. While Pip Probert wants to explore alternative materials to create something unusual, Helen Elks-Smith believes the answer lies in understanding the flow of the space. Whose idea will Mandy and Chris choose? Angela Scanlon oversees their decision.

The Directors (Sky Arts, 9pm)

John Carpenter first developed an interest in film and music as a young boy, and his student project, The Resurrection of Bronco Billy, won him an Academy Award (for Best Live Action Short Subject) in 1970. The final programme in this documentary series profiles the filmmaker, who subsequently went on to make feature films Dark Star, Assault on Precinct 13, Halloween, The Thing, The Fog, Escape from New York, Escape from LA, Starman, Prince of Darkness, They Live, Memoirs of an Invisible Man and Ghosts of Mars.

FRIDAY: The Comedy Vaults: BBC2's Hidden Treasure (BBC2, 9pm)

As part of the channel's 50th birthday celebrations in 2014, this programme delves into the archives for rarely seen moments from some of the greatest names in comedy. It features clips from unbroadcast pilots including Miranda Hart's Joke Shop, Stephen Fry's first appearance as QI host and a sitcom starring the band Madness, as well as footage of Spike Milligan, Peter Cook and Dudley Moore, Rik Mayall, Billy Connolly, and Sacha Baron Cohen's first incarnation of Borat, an Albanian called Christo. Tamsin Greig narrates.

Deutschland 89 (More4, 9pm)

The second sequel to the stylish German thriller Deutschland 83 continues. As Martin struggles to keep his son Max safe, various agencies look to recruit the superspy. And with the HVA up till their necks in trouble, they cannot be trusted to save Martin anymore. When Brigitte Winkelmann visits him, he considers taking her offer up, and is eventually left with three choices - "You get arrested or killed or get hired". Elsewhere, Lenora Rauch receives a visit from an old friend, Rose. And at the HVA, Walter Schweppenstette is sent on a new assignment.

The Graham Norton Show (BBC1, 10.45pm)

Graham welcomes Parks and Recreation star Amy Poehler, who directs and appears in the new comedy Moxie, based on the novel by Jennifer Mathieu. Also joining the host is Oscar-nominated actor Minnie Driver, who will be promoting her podcast Minnie Questions, and speaking about her role as Queen Beatrice in the upcoming James Corden-penned fairytale musical Cinderella. Alias star Jennifer Garner also drops by to discuss the family comedy Yes Day, and singer/songwriter Tom Odell performs his new single Numb.