DIY SOS: Grenfell
9pm, BBC One
A year after the Grenfell Tower fire disaster, Nick Knowles and his hardhat crew took on what was surely their most ambitious project to date: pledging to construct a new community centre and gym on a site under a nearby west London overpass. The opening instalment of this emotional two-part special sees the team designing a new home for the local Dale Youth boxing club. If the nine-week timeframe seems like a tight window for such a big build, there is a royal patron ready to volunteer his surprisingly good undercoating skills. Graeme Virtue
The Extreme Diet Hotel
8pm, Channel 4
“We will whip you into shape and you will say thank you and pay us [£750] for the privilege!” Not the demand of a dominatrix, but the greeting offered by formidable weight-loss guru Galia Grainger to new arrivals Kirsty, Tony and Liam at Slimmeria, AKA Britain’s poshest fat camp. Laughter, tears and real results. Mike Bradley
Coronation Street’s DNA Secrets
9pm, ITV
Who do you think you are, our kid? Stars from Weatherfield explore their ancestry in this one-off soap/genealogy crossover, with the results revealed on the cobbles by Long Lost Family digger Nicky Campbell. Among those submitting to a saliva test are Kym Marsh, Simon Gregson and William Roache.
Made by Machine: When AI Met the Archive
9pm, BBC Four
Is machine learning the way forward for TV? Using the latest AI technology, BBC Four scans programme information from more than 250,000 shows dating back to 1953 to learn what audiences might like. Plus, we see what happens when computers are tasked to create new content for the channel. MB
Seatbelt Psychic
10pm, Lifetime
Clairvoyance meets conveyance in this new series featuring US medium Thomas John as an Uber-style driver offering psychic readings to customers in transit. Most of his fares seem open to the idea of communing with spirits but, after this opening double bill, you might find yourself wishing he had just cranked up TalkSport instead. GV
Cover Story
10.35pm, Channel 4
The latest Icelandic crime drama off the rack is well-plotted and quick to engage as a paperboy spots a girl hanged on the swings in a local playground. She was last seen the night before on the arm of an oilman, who has now hired a struggling journalist to prove his innocence. Darkly compelling. MB
Film choice
The Paperboy (Lee Daniels, 2013) 1.45am, Channel 4
Lee Daniels’s swampy, sweaty noir is set in 60s Florida, where Nicole Kidman’s peroxide femme teams up with journalists Matthew McConaughey and David Oyelowo to research a story on the wrongful murder conviction of her death-row boyfriend (a sleazy John Cusack). Brash, brutal and sexy. Paul Howlett
Live sport
Cycling: Tour of Britain 10.45am, ITV4. Stage four, a route from Nuneaton to Royal Leamington Spa.
Tennis: US Open 4pm, Amazon Prime Video. Conclusion of the men’s and women’s quarter-final stage.
National league football: Havant v Aldershot Town 7.15pm, BT Sport 1. Standout (and indeed only) fixture on a quiet night for football.
