The Drowning
9pm, Channel 5
Nine years after the disappearance of her four-year-old son, Jodie (Jill Halfpenny) is slowly piecing her life back together – until she spots a teenage boy whom she immediately believes to be her son. This triggers a dangerously unhinged series of events in this four-part drama, as Jodie tries to insinuate herself further into the life of the boy and his father (Rupert Penry-Jones), seeking out the truth. The remaining three parts screen nightly at 9pm. Ammar Kalia
The Mallorca Files
1.45pm, BBC One
The easygoing crime series returns for a second run, following DC Miranda Blake (Elen Rhys) and DC Max Winter (Julian Looman) as they hunt down the island’s biggest criminals. In today’s opener, Miranda settles into Mallorcan life before she investigates the murder of a famous opera singer. AK
Mend It for Money
5pm, Channel 4
A competitive version of The Repair Shop? Surely the charm of the BBC’s sleeper hit lies in its gentleness. But this series takes a decidedly different approach: craftspeople pitch to bring treasured relics back to life in return for a share of the resale value. Tonight, a rocking horse and an old bike. Phil Harrison
Cornwall: This Fishing Life
9pm, BBC Two
The small town of Padstow is known as a posh tourist destination, but it also has a thriving crab-fishing industry. The trouble is, those crabs are exported to the continent. Brexit always hovers over this revealing series, although here the problem isn’t tariffs or paperwork, at least not yet; it is lockdown. Jack Seale
Britain’s Lost Masterpieces
9pm, BBC Four
The art sleuths Bendor Grosvenor and Emma Dabiri head to Brighton Museum to launch season five of the show that scours gallery storage for hidden gems. Can they demystify the murky provenance of two portraits? After some miraculous clean-up efforts, all signs point to Europe. Graeme Virtue
Celebs Go Dating: The Mansion
9pm, E4
If The Cabins isn’t enough isolation-themed dating for you, this bubbled version of Celebs Go Dating might be the ticket. Living in a “mansion” for four weeks are the likes of Wayne Lineker (the brother of Gary) , Love Island’s Curtis Pritchard and Geordie Shore’s Chloe Ferry, all entering into a round robin of first dates. AK
Film choice
Ali G Indahouse (Mark Mylod, 2002), 9pm, Comedy Central
Before Borat and Brüno, Sacha Baron Cohen first hit the big screen with his self-aggrandising homeboy from Staines. Ali G is persuaded into politics by the conniving deputy prime minister (Charles Dance), then has to save the prime minister (Michael Gambon) from a conspiracy, sort out world peace and ensure the future of his community centre. Paul Howlett
Live sport
ATP Cup tennis 6.30am, Amazon Prime Video. First day action from Melbourne.
Championship football: Watford v Queens Park Rangers 7.30pm, Sky Sports Main Event. Promotion chasers host the mid-table side.
Prada Cup sailing 2am, Sky Sports Main Event. Seventh semi-final of the event from Auckland, which determines qualification for the America’s Cup.
