Turner: The Secret Sketchbooks

9pm, BBC Two
JMW Turner is an enigma. But while he didn’t leave behind a diary, he did leave 37,000 private sketches that give clues to his character – and they have been made public for the first time. Clinical psychologist Orna Guralnik, actor Timothy Spall (who played the painter in Mr Turner), artist Tracey Emin and naturalist Chris Packham are some of the fans who search for insight via these pages – and question whether he was neurodivergent. Hollie Richardson

Grand Designs: House of the Year

8pm, Channel 4
Time for extreme property envy again, as Kevin McCloud and his team nosey around the houses shortlisted for the Riba (Royal Institute of British Architects) house of the year. They start with six homes built against the odds, including one on a collapsing hillside on the south coast. HR

Portrait Artist of the Year 2025

8pm, Sky Arts

Space man … Tim Peake is among the sitters in Portrait Artist of the Year. Photograph: Chris Lobina/Story Vault Films

Big Boys creator Jack Rooke, ballet dancer Reece Clarke and retired astronaut Tim Peake are the three famous faces sitting for their portraits this week. Stephen Mangan hosts as nine artists attempt to capture them best, with the experts judging their efforts. HR

Shetland

9pm, BBC One
Troubled care-leaver Stevie (Chloe-Ann Tylor) is shooting up the list of suspects for Eadie’s murder, thanks to a beady-eyed cab driver. Meanwhile, Chris and Hayley continue to be the most inept accidental drug dealers north of the border, and the fact Sandy wants to re-interview Chris (Gabriel Akuwudike) about his statement isn’t helping. Ellen E Jones

Battle of the Irish Dancers

9pm, Sky Arts
The young hopefuls prepare for the dance of their lives. In Birmingham, Lauren, 17, hopes to qualify for the world championships. In Dublin, Ella from the Niall Holly Academy performs at the Irish Shield Feis. And in Newcastle, teacher Kelly Hendry leaves her pupils in little doubt as to the challenges involved: “At the end of the day, this is about you being perfect.” Ali Catterall

BBC New Comedy Awards 2025: Final

10.40pm, BBC One
Over its 30-year history, it has been a springboard for both Lucy Beaumont and her Traitors rival, bolted-on national treasure Alan Carr. And now six finalists, including London standouts Blank Peng and Sharifa Butterfly, battle it out at Bradford’s Alhambra theatre for the chuckle crown. Amy Gledhill hosts, Fatiha El-Ghorri judges, and there’s a special set from 2024’s champ, Paul Hilleard. AC