Channel 4 takes an unvarnished, extraordinary delve into a troubling case in Ruislip, where drug dealer Martin Butler turned his house into a party venue, leading to the rape of several children. The documentary Do You Know This Man? (10pm) tells the story of Laura Hughes, Lauren Preston, and Mary Sharp, who decades later joined forces to bring Butler to justice. Their testimony is extraordinary, with trauma still evident but matched by guts and resilience.
The Future With Hannah Fry
At 7.30pm on BBC Two, Hannah Fry explores anti-ageing science. In the US, she meets a biohacking influencer and a scientist working to prolong life; in Japan, the secret to longevity might be butterflies.
Race Across the World
At 8pm on BBC One, the teams hit Mongolia in this penultimate episode. After balmy weather and tourist trails, they face chilly, rugged conditions off-road.
Amandaland
At 9pm on BBC One, SoHa gets a pretentious coffee shop, and Amanda (Lucy Punch) celebrates with a photo collab. But Anne (Philippa Dunne) becomes a horticulture influencer by mistake, leading to humiliation.
Only Child
At 9.30pm on BBC One, widower Ken gets back into dating, and son Richard considers major life changes ahead of his 40th. The sitcom stars Gregor Fisher and Greg McHugh.
Kidnapped By My Mum
At 9pm on BBC Three, 11-year-old Alex Batty was taken to Spain by his mother and grandfather in 2017 and found six years later hitchhiking in the Pyrenees. In this non-sensationalist documentary, Alex retraces his journey and confronts his trauma.
