TV tonight: can Maura Higgins outsmart the Traitors US? | Television

The Traitors US

9pm, BBC Three
The American version – with its OTT celebrities and host Alan Cumming in some outlandish wardrobe choices – has proved a fun watch. As we reach the climax, “Housewife Slayer” Rob is hoping to introduce singer Eric to his murderous ways, while former figure skaters Tara and Johnny reveal the friendship they have kept hidden. And can ex-Love Islander and pride of Ireland Maura Higgins wise up about the identity of the Traitors before she becomes one of their last victims? Hannah J Davies

The Marlow Murder Club

8pm, U&Drama
A chance to catch up with the cosy mystery drama based on Robert Thorogood’s novel. When retired archaeologist Judith Potts (Samantha Bond) hears a gunshot, she teams up with the vicar’s wife and a dog walker to investigate. Hollie Richardson

Who Do You Think You Are?

9pm, BBC Two

Actor Ruth Madeley comes from a family of proud Mancunians and they are astonished to find out that Ruth’s grandmother was adopted – with her roots in Peckham. Ruth, somewhat disappointed, gets on the train to London (“I knew that’s where I’d end up!”) to learn the full story. Have a box of tissues close to hand for the final revelations. HR

Cornwall: A Year By the Sea

8pm, Channel 5
“I’m really a custodian,” says Ron of the Padstow farm his family has toiled on for more than 150 years. Now, his son Ross is catering for a new clean-eating generation, hosting restaurant-style feast nights from produce grown entirely on the land. Elsewhere, fisher Martin Murt thinks he’s cracked a way of catching scallops, using experimental underwater lights. Ali Catterall

Garbo: Where Did You Go?

9pm, Sky Arts
First released last year, Lorna Tucker’s feature documentary retraces Greta Garbo’s rise from a Stockholm slum to Hollywood. Was she really a reluctant star? Her own letters, seen here, suggest so, but there are nice hints of silliness and fun, too. HR

The Accused: Beyond Reasonable Doubt?

10pm, Channel 4
It’s the concluding part of a spare and unsensationalised crime series about possible miscarriages of justice. In 2012, ex-firefighter David Bryant, a well-liked figure in Christchurch, Dorset, was accused of a sexual assault dating back to the 1970s. He insisted he was innocent, but was later convicted and endured what he has called “a living hell”. HJD