TV Tonight: Confessions and Cliffhangers in Beneath the Salt Marsh | television

Under the salt marsh

9pm, Sky Atlantic
After Nyssa’s body is found in a landfill, local farmer Solomon (Jonathan Pryce) leaves us with an embarrassing confession – but what role did he really play in the little girl’s death? While Detective Paul (Rafe Spall) questions him, Jackie (Kelly Reilly) grieves for her niece and tries to reconnect with her sister after years of guilt. The village needs to evacuate in anticipation of the coming deadly storm – but it will take more than just a natural disaster to completely destroy Jackie’s disheveled hair. Holly Richardson

Frontline: Our soldiers confront Putin

8pm on Channel 4
They describe this as the greatest military test for the West since the Cold War, and with exclusive access to the inner workings of NATO in 2025, this thrilling documentary will certainly make a show. From Naples to Narva, Estonia, the film depicts a Europe already deeply engaged in the battle to stop Putin – with or without Trump’s support. Ellen E. Jones

googlebox

9pm on Channel 4
Armchair critics have a lot to dissect this week, with a huge Lord of the Flies adaptation, intensely challenging show The Summit, Winter Olympics action and How to Get to Heaven from Belfast – from Derry Girls creator Lisa McGee. Plus, there’s always something going on in the news to chew on. Human resources

Jay Montgomery Jay Mont Spelling B Australia

9pm, BBC Three
The series, which tests the literacy of comedians, including Tim Minchin, continues with “needlessly elaborate spelling challenges” – with the worst actors forced to don the idiot hat. Words they are having difficulty getting right this week include ‘dried’, ‘artificial’ and ‘testicular torsion’. The main fun is in testing yourself. Alexey Duggins

The Graham Norton Show

10.40pm, BBC One
Emmy Award-winning man of the moment (and of every moment) Stephen Graham is sitting on the red sofa talking about his exciting new dark comedy Good Boy. Also performing at the concert will be Kaley Cuoco, Adrienne Lester and Gorillaz, who will perform their new single Orange County. Human resources

Masked Devil: John Wayne Gacy

At 10.45pm on ITV1
This dramatization of the horrific crimes committed by serial killer Gacy benefits from some narrative constraints (although that’s not always how you’d always describe Michael Chernus’ lead performance). In this episode, the police look to Gacy to lead them to the bodies of his victims. He is surprisingly cooperative, which provides certain clues about his motives. Phil Harrison

Choose a movie

Immortality (David Frayne, 2025), Apple TV

David Freyne’s beautiful new film is a throwback to classic Hollywood romantic comedies like the Cary Grant classic My Favorite Wife. Miles Teller (as Grant) plays Larry, who dies accidentally after 65 years of marriage to the terminally ill Joan Elizabeth Olsen. He finds himself in an afterlife transit hotel where he must choose one of many worlds in which to live forever. Joan shows up soon after, but is met by Luke (Callum Turner), her first husband, who was killed in the Korean War and has been waiting for her ever since. Who will Joan choose to spend eternity with? Teller, Olsen, and Turner find the perfect balance of wit and warmth in a charming drama. Simon Wardle

Astronaut (Jess Farley, 2025), Paramount+

When the main character says of her remote forest retreat, “It looks like a horror movie,” you know what she’s in for. In Jess Farley’s sci-fi drama, Kate Mara plays the titular astronaut, who returns to Earth after a reentry gone wrong. She is sent to recuperate at a high-tech country house by her Pentagon general father (Laurence Fishburne), and begins having visual and auditory hallucinations, not to mention mysterious bruises. Is there a creature hiding in the forest? A tidy cooler with a beefy twist. Southwest

How to train your dragon (Dean DeBlois, 2025) 8.25am, 4pm, premiere on Sky Cinema

Universal got into Disney by creating a live-action version of its hit animated comedy in 2010 — and it did it pretty well, too. Original writer-director Dean DeBlois returns to helm the (mostly) human cast, led by Mason Thomas as Smith’s apprentice Hiccup. He is a disappointment to his main Viking father, Stoick the Vast (Gerard Butler, reprising his role), due to his ineptitude in fighting the dragons raiding their village. But then Hiccup befriends one of the creatures, Toothless, and sees a way out of his clan’s never-ending conflict. He walked. Southwest

Moulin Rouge! (Baz Luhrmann, 2001), 11pm, BBC Two

Take a great opera like La Bohème, a Bollywood dance routine or two, some Elton John and Nirvana songs, plus an exotic Greek myth, then pan it up to the dizzying melting pot of fin-de-siècle Paris – and you’ll have Baz Luhrmann’s fever dream of a movie. It’s an almost overwhelming cultural mix, with librettist Ewan McGregor and courtesan/theatrical star Nicole Kidman doing a good job of impressing us as star-crossed lovers amid the colorful opulence, frenetic editing and outdated tunes of this magpie musical. A clear case of more being more. Southwest

Live sports

Men’s FA Cup: Hull v Chelsea, 7.30pm, BBC One Draw in the fourth round.