The Nest
9pm, BBC One
The action in writer Nicole Taylor’s riveting five-part series on a Glaswegian couple’s attempts at surrogacy has been progressing more like a panic attack than any kind of typical drama and tonight’s penultimate episode is no different. After the violent fallout of last episode’s prom, Kaya’s baby is in a precarious state while Dan keeps vigil and his wife Emily is nowhere to be found. Meanwhile, journalist Eleanor is unpicking the threads that lead to Kaya’s troubled past. The series concludes tomorrow night. Ammar Kalia
Who Wants to Be a Millionaire? Celebrity Special
7pm, ITV
Warm up for tomorrow’s Millionaire-themed drama Quiz with the real thing, or at least the spin-off for celebs. Jeremy Clarkson asks the questions; answering them are Charlotte Church, John Barnes and perhaps the likeliest to win for charity, Richard Osman. Jack Seale
Sacred Songs: The Secrets of Our Hearts
7pm, BBC Four
In another year, acclaimed choir Tenebrae would be preparing for a bumper calendar of choral performances. For obvious reasons this is not the case in 2020, but the magic of the internet sees 19 of its singers and conductor Nigel Short join up for this special one-off performance. Hannah J Davies
Race Across the World
8pm, BBC Two
Six episodes into the glorified gap year series and the four remaining teams are progressing as chaotically as ever, now heading towards Brazil, en route to their goal of Ushuaia. Dom and Lizzie finally catch up to the others after Dom’s health scare in Chile, while Emon and Jamiul are running out of funds. AK
Belgravia
9pm, ITV
Julian Fellowes’ lavish drama on the gossipy goings-on of London’s 19th Century upper classes continues at a stately pace with Oliver Trenchard letting his jealousy get the best of him by threatening to reveal a shocking secret about Charles. Meanwhile, John tries to get to the Trenchards through their disgruntled staff. AK
Trigonometry
10pm, BBC Two
The touching thrupple-based drama continues with a visit from Ray’s mum, Mathilde. There’s a good dose of awkwardness as she observes the dynamic between the housemates over dinner, but when she makes her daughter an offer that doesn’t fit in with her current lifestyle, Ray has a dilemma. Hannah Verdier
Film choice
A Fish Called Wanda, 10.30pm, BBC One
Never a dull moment in Charles Crichton’s lovely 80s Ealingesque comedy. Stolen diamonds unite barrister Archie (John Cleese), gangster’s moll Wanda (Jamie Lee Curtis), stooge Michael Palin, and Kevin Kline as Wanda’s boyfriend, Otto: he wants his jewels back, and he will even eat goldfish to get them. Paul Howlett