Dune: Prophecy

9pm, Sky Atlantic
Emily Watson stars in this big-budget prequel to the blockbuster films, set more than 10,000 years before Timothée Chalamet arrives on the scene. She plays Valya Harkonnen, the mother superior of an order on Wallach IX, who vows to protect the Sisterhood (which will become the Bene Gesserit, the superhuman, all-female “mental and physical school”), along with her sibling Tula (Olivia Williams). ). Thirty years later, a royal wedding, which is part of their plan, is in jeopardy. Hollie Richardson

Panorama: can scientists save the world?

8pm, BBC One
Carbon-absorbing mechanical trees? Machines that make the cloud brighter? These are just some of the innovations that reporter Richard Bilton explores as he meets the scientists trying to find solutions to the climate crisis. They claim they work, but require investment to be effective on a large scale. HR

Immigration: how British politics failed

9pm, BBC Two
The final episode is a bumpy trip down memory lane in one of Theresa May’s ‘go home’ vans, as we revisit the ‘hostile environment’ policy and the rise of Ukip. Several key figures are interviewed, but can anyone suggest that immigrants have been scapegoated because of a more fundamental failure of politics? Ellen E. Jones

Jason Watkins & Lady Jane Grey: A Tower of London Special

9pm, Channel 5
Not only does Bafta-winning actor Jason Watkins believe he is related to the royal courtier who oversaw the beheading of Lady Jane Grey; he also thinks he is connected to Jane Austen. Historian Tracy Borman helps him get to the bottom of it all. HR

Teenage Predator/Online Killer

9pm, BBC Three

Alexander McCartney, a 26-year-old Northern Irish man who used catfishing techniques to become a prolific online child molester, was given a life sentence last month. This three-part bill details how he was brought to justice. It starts in 2019, with a police report from Scotland that turns out to be the tip of a horrific iceberg. Graeme Virtue

The franchise

10 p.m., Skycomedy
Jon Brown’s inconsequential but well-acted satire of the superhero blockbuster industry continues, with a shoot in Armenia causing further wobbles for visionary director Eric (Daniel Brühl). It’s time for his attentive assistants Dan and Dag (Himesh Patel and Lolly Adefope) to intervene. Jack Seale