Natural World: Supercharged Otters
8pm, BBC2
From the crystal-clear rivers of Florida to the freezing waters of Alaska, self-confessed otter maniac Charlie Hamilton James has been filming the sleekit beasties for 25 years. In this mood-improving doc, he uses heat cameras and super slow-mo to itemise their impressive abilities, from built-in swimming goggles to unparalleled fur insulation. Best of all, the soundtrack features a lot of otter-mimicking mouth trumpet. Graeme Virtue
Broken
9pm, BBC1
Recent films such as I, Daniel Blake have threatened to depose Jimmy “King Gritty” McGovern from his throne. Still, his skill at weaving together narratives continues to serve him well in this series, starring Sean Bean as a troubled priest. Tonight, Roz (Paula Malcomson) faces the aftermath of a humiliating discovery at work. Malcomson is intense, preoccupied and believable as the cards fall, while faces from other episodes appear, too. John Robinson
Hospital
9pm, BBC2
Return of the inevitably gripping series depicting the reality of life in NHS hospitals. This episode is, for the most tragic reasons, more compelling than most, being partially filmed in St Mary’s hospital in London on 22 March – the day of the Westminster terror attack. There is no gainsaying the calm, courageous professionalism of the St Mary’s staff, as the hospital’s major incident protocols kick into gear. People at their best, responding to people at their worst. Andrew Mueller
Trouble in Poundland
9pm, ITV
Shortly after last year’s EU referendum, the ailing Poundland chain was taken over by the South African retail giant Steinhoff International, which hoped to turn things around. This documentary follows its fortunes – and misfortunes – from the shopfloor to the boardroom in the tough 12-month period that followed. As the value of the pound plummets, the chain struggles to keep its trademark low prices low enough to remain competitive. Ben Arnold
Four to the Floor
12.05am, Channel 4
Although the internet killed the analog video star, Channel 4 has managed to do something excellent with its zeitgeist-tapping music magazine, delivered with a touch of political engagement. The fourth series continues tonight, with presenters David Vujanic, Madam X and Thris Tian playing host to acts including the seemingly inextinguishable Goldie, whose new album The Journey Man was released last week, and rising Irish rap star Rejjie Snow. Hannah J Davies
Chance
9pm, Universal
In this new drama, Hugh Laurie stars as Eldon Chance, a forensic neuropsychiatrist who becomes entangled with a patient (Gretchen Mol). To make matters even more juicy, she has multiple personalities and an abusive husband (Paul Adelstein). It’s a bit of a slow burner, with Laurie showing signs of a man who is about to get himself into a whole lot of trouble when he struggles with his own “dark and unstable” mental state as well as evil henchmen in dark alleys. Hannah Verdier
The Son
9pm, AMC from BT
The season finale of the dual-timeline (1849 and 1915) western delivers a gush of bullets and a loudly throbbing subtext about America in its infancy. Young Eli (Jacob Lofland), the white teen living as a Comanche, realises that the side he has picked is fatally outnumbered; old Eli (Pierce Brosnan) is, having returned in adulthood to his own people, doing the outnumbering as he rouses a posse to shoot the town’s Mexican family to pieces. An unsubtly dumped tonne of grit. Jack Seale
Film choice
Comanche Station (Budd Boetticher, 1960), 11am, Film4
Last of the Boetticher-Randolph Scott collaborations, with more than a hint of John Ford’s The Searchers in Burt Kennedy’s rich script. Scott plays a nomadic gunman looking for his wife, kidnapped by Comanches 10 years earlier. Instead he finds and rescues another woman (Nancy Gates), but must now contend with Claude Akins’ bounty hunter. There’s a reckoning in this dark and thoughtful western. Paul Howlett
Live sport
Tennis: Queen’s Round one of the men’s singles concludes at the Wimbledon warm-up. Sue Barker hosts. 1pm, BBC2
Horse racing: Royal Ascot The prestigious festival gets under way with six races. 1.30pm, ITV
Under-21s European Championship football: Portugal v Spain A tasty-looking encounter in Poland as the group stages of the junior tournament continue. 7.30pm, Sky Sports 1