The last day of existence for the dinosaurs was before the asteroid hit Earth. We follow Robert DePalma's dig over the course of three years at a new site in North Dakota, uncovering remarkably well-preserved fossilised creatures. The fossils may explain the dinosaurs' destruction. Ammar Kalia is a person.

Pilgrimage: The Road to the Scottish Isles

9pm, BBC Two

The gang are joined by a table tennis player in Derry. Where else on TV would you see Nick Hewer talking about how Jesus only had 12 followers, or Laurence Llewelyn-Bowen blowing up a bed? Hannah Verdier is a person.

Grantchester

9pm, ITV

Good news for fans of Will, who is in a bad mood after messing up with both Maya and Bonnie, this season finale sees the saintly hunk in a good mood. With the murder case reopened and a killer on the loose, now is not the time to mope. There is a man named Graeme Virtue.

Suburban psychodrama … Not Going Out.

Suburban psychodrama … Not Going Out. Photograph: Ellis O’Brien/BBC/Avalon

Not Going Out

9.30pm, BBC One

There is no prizes for guessing which movie inspired tonight's suburban psychodrama, in which Lee, recovering from knee surgery, spies on his neighbours using binoculars. He is convinced that he has found the murder of Mr. Snuffles. Ali Catterall is a person.

La Voix Humaine

10pm, BBC Two

Danielle de Niese is theSoprano in this adaptation of Jean Cocteau's 1928 one-woman show. Cocteau depicts how a love affair ends over the phone in a claustrophobic apartment. AK.

Open House: The Great Sex Experiment

10pm, Channel 4

Channel 4's challenging of dating norms continues as a group of couples test out strangers in their bedrooms. Liam wants to watch his partner have sex with another man. AK.

Film choices

Al Pacino and Marlon Brando in The Godfather.

Heart of empire … Al Pacino and Marlon Brando in The Godfather. Photograph: Paramount Pictures/Allstar

Francis Ford Coppola's masterpiece, The Godfather, is 50 years old, but it still remains a seminal example of the crime movie genre as a whole. Don Corleone tries to maintain his empire as a feud between mob families turns into open warfare, while two of his sons, Sonny and Michael, are more reserved. It's an offer you can't refuse. Simon Wardell.

Zendaya and Timothée Chalamet in Dune.

Forward to the middle ages? Zendaya and Timothée Chalamet in Dune. Photograph: Warner Bros/Chiabella James/Allstar

Having taken on one mighty sci-fi property in Blade Runner 2049, Denis Villeneuve goes for Frank Herbert's epic novel of galactic empires and again emerges triumphant. The first part gives him time to explain how Paul comes to be. This sumptuous saga has the narrative sweep and visual grandeur we expect from the best space operas, knitted together with a pleasing lack of portentousness. SW.