Naked Beach
8pm, Channel 4
Typically for Channel 4, this new series is lurid voyeurism justified by social responsibility. When it comes to body image, Britons suffer desperately low levels of self-esteem. In this experiment devised by mental health expert Natasha Devon and psychologist Dr Keon West, three people who hate their bodies are dispatched to a Greek villa to spend time among people of all sorts so unashamed of their bodies they are happy to go about naked. Will they too strip, and in so doing divest themselves of shame? David Stubbs
Changing Britain: 20 Years of Tonight
7.30pm, ITV
Often dismissed – with some justification – as a tabloid Panorama, ITV’s current affairs show has been responsible for some major scoops in its history, notably Martin Bashir’s 2003 encounter with Michael Jackson and interviews with the Stephen Lawrence suspects. Both are recalled in this anniversary special. Gwilym Mumford
Celebrity Painting Challenge
8pm, BBC One
Mariella Frostrup leads the artists as they attempt to make a digital painting of a vegetable landscape. At first, it looks like a split between the generations: George Shelley and Amber Le Bon can’t wait to get started; Jane Seymour is more circumspect. Watching them at work is oddly soothing. Hannah Verdier
Pose
9pm, BBC Two
Plus-size positivity arrives at the House of Abundance. “Oh, the tittiness of it all!” exclaims Pray Tell. Meanwhile, Damon’s fever convinces Blanca to get the whole of House of Evangelista tested for HIV. Pose remains as heartfelt as it is fabulous. If you’ve seen these girls walk, you’ll know that’s saying something. Ellen E Jones
Brooklyn Nine-Nine
9pm, E4
Now in its sixth season, the Andy Samberg-fronted sitcom remains – alongside creator Mike Schur’s other show The Good Place – the most buoyantly optimistic on TV. This week’s episode, set at a 90s-evoking high-school reunion, is hardly the most essential in the show’s history but is cheerfully diverting enough. GM
Lee and Dean
10pm, Channel 4
This overly crass mockumentary about two Stevenage builders returns, with Lee and Dean’s uneasily close friendship on the skids after the unpleasantness at the end of series one. A funeral brings everyone together again, but the moments of pathos are drawn with just as thick and blunt a pencil as the bathos. Jack Seale
Film choice
The Fighter (David O Russell, 2010) 11.40pm, AMC from BT
Based on a true story, David O Russell’s boxing movie stars Mark Wahlberg as 1990s welterweight “Irish” Micky Ward. He wants a shot at the title, but carries the burden of big brother Dicky (Christian Bale), a former champ-turned-trainer-turned-addict. Wahlberg is quietly impressive, Bale twitchily distracting. Paul Howlett
Live sport
Premier League darts 7pm, Sky Sports Action. Liverpool’s M&S Bank Arena hosts the 10th round.
Europa League football: Arsenal v Napoli 7.15pm, BT Sport 2. Slavia Prague v Chelsea airs on BT Sport 3 from 7.30pm.
Golf: The Masters 8pm, Sky Sports Golf. The Augusta National hosts the first major of the season.
