TV tonight: the search for the murderer of Northern Irish journalist Lyra McKee

The Murder Detective

9pm, Channel 4
The 2019 murder of the journalist Lyra McKee in Derry was a grim reminder that, while the Troubles are in abeyance, it’s still a stretch to describe them as being over. Filmed across seven years, this three-part documentary gains impressive access to the detectives hunting for Lyra’s killer. It’s intense and gripping: the team struggle to persuade any witnesses (there were more than 150) to come forward and gradually realise that they are, in fact, investigating the leadership of the New IRA. Phil Harrison

Surviving Earth

8pm, Sky One
This Walking With Dinosaurs-style series is parked in the Triassic era, a period when evolution was forcibly redirected by extinction events. But the programme makers know you can make a looming ice age relatable by telling the story of a plucky little critter: in this case, a squat young ischigualastia dealing with food scarcity. Graeme Virtue

Bookish

8pm, U&Alibi
Back to 1946 London for more genteel, meticulous detective work with Mark Gatiss’s bibliophile sleuth, Gabriel Book. Series two begins in the world of mediums as Book examines a seance resulting in the apparent killing of Harold Sneed (an enjoyably louche Jason Watkins). For all the supernatural woo-woo, could the answer be surprisingly earthbound? PH

Professor T

9pm, ITV1
There’s a whiff of The Thursday Murder Club to the latest outing for Ben Miller’s compulsive criminologist as he finds himself at the scene of a violent murder in a posh retirement village. The fact that DS Winters (Barney White) hates his guts could derail the case. Might a joint therapy session help? GV

The Never Ending Murder

10pm, Channel 4

One of the most serious unsolved crimes in British history … the disappearance of Nicola Payne. Photograph: Channel4

This series promises new revelations concerning one of the most serious unsolved crimes in British legal history. In 1991, somewhere between her home and that of her parents, 18-year-old Nicola Payne vanished. She hasn’t been seen since, but the police have been unable to make any progress towards uncovering her fate. PH

Rainbow Warrior

10pm, Sky Documentaries
Back in 1985, the ideas propagated by Greenpeace hadn’t quite reached the mainstream. However, its campaign to stop French nuclear testing in the South Pacific – which culminated in the bombing of the titular boat – was a turning point. This lively, fascinating documentary hears from many of those directly involved. PH

Film choice

Endearing … Moses Al Shabazz (Marchánt Davis) in The Day Shall Come

The Day Shall Come (Christopher Morris, 2019), 1.25am, Film4
Chris Morris’s scathing 2019 satire about the US government’s “war on terror” and the innocents caught up in it may be the most neglected of his brilliant career, but in its plausibility (“Based on a hundred true stories,” a title card notes) and bleak comedy it deserves more love. Moses Al Shabazz (an endearing Marchánt Davis) is a delusional Miami preacher who leads a radical black power movement (members: three) that is infiltrated by an FBI branch desperate for a win, despite posing no actual threat. Not as surreal as Four Lions, but it still possesses a sharp bite. Simon Wardell