Serengeti
8pm, BBC One
The actor John Boyega assumes the role of storyteller in this “dramatised” look at a year in the life of the animals of the African savannah. A beguiling cast ranges from Kali the exiled lioness in need of a pride to help care for her four cubs, to Bakari, a lovelorn baboon, and Tembo, a displaced teenage elephant. Mike Bradley
Holly Hobbie
5pm, CBBC
In the rural town of Collinsville, upbeat teen Holly juggles high-school travails, farm chores and her ambitions to become a country singer. This new children’s drama arrives in the UK with zero cultural baggage – in the US, Holly Hobbie is a beloved ragdoll from the 1970s – but feels both wholesome and filmic. Graeme Virtue
Grime & Punishment: Dirty Britain
8pm, Channel 5
This week’s dispatch from “the frontline of filth” features jolly, jokey Cardiff enforcement officers Wayne and Dan on the trail of fly-tippers. Plus, every rodent’s worst nightmare in the form of exterminator Ratman, and hygiene inspector Suzanne, saintly scourge of Britain’s chip shops. MB
Catch-22
9pm, Channel 4
Episode three of a dramatisation that carefully channels the fluctuation between horror and farce in Joseph Heller’s novel. Yossarian (Christopher Abbott, who is fantastic as a man cursed with more intelligence than is bearable in his circumstances) ups his efforts to avoid death, but he can only swap his death for other people’s. As combat’s sudden rushes of queasy terror are powerfully realised, it’s goodbye to several major characters, all of them in unforgettably absurd circumstances. Jack Seale
Sarah Payne: The Untold Story
9pm, ITV
Susanna Reid goes behind the headlines of the notorious child murder case, speaking to police and members of the Payne family. It’s grim going, but as Sarah’s bereaved mother says: “Sarah did change the world … I don’t know how many children she saved, but I think it’s a lot.” Ellen E Jones
Legion
9pm, Fox
A final season of Noah Hawley’s show based on Marvel Comics character David Haller (Dan Stevens) begins with a typically trippy Lynchian excursion involving rabbit holes and time travel. As Haller’s story enters a new arc, he enlists the help of bemused mutant Switch (Lauren Tsai), whose secret superpower is vital to his plans. MB
Film choice
A Bigger Splash, 1am, Film4
Luca Guadagnino’s update of La Piscine has Tilda Swinton’s Bowie-ish rock star and Matthias Schoenaerts’s film-maker basking in the sunshine of their Sicilian hideaway. But up to this idyllic haven rocks her former lover (Ralph Fiennes), towing his 22-year-old daughter (Dakota Johnson), to ignite a fiery, funny drama. Paul Howlett
Sport choice
World Cup Cricket: Afghanistan v West Indies, 10am, Sky Sports Cricket
Group-stage match from Headingley Stadium.
European Tour Golf: Irish Open, 10.30am, Sky Sports Golf
Opening day of the tournament, held at Lahinch Golf Club in County Clare.
Tennis: Wimbledon 2019, 11am, BBC Two
The second round continues.