Belfast-based thriller Bloodlands comes from the pen of first-time TV writer Chris Brandon, though he may find some of his thunder being stolen by the show’s producer, Line of Duty supremo Jed Mercurio. Line of Duty is filmed in Belfast too, though it doesn’t advertise the fact on screen. Bloodlands, on the other hand, is steeped in its northern Irish locations both rural and urban, as it unravels a dark and twisty tale of the legacy of the Troubles and how the past has an ugly habit of coming back to poison the present.

Based on a book by Roberto Saviano, author of the Neapolitan gang saga Gomorrah, ZeroZeroZero (Sky Atlantic) is an account of the international drugs trade and the way its tentacles wrap themselves around the entrails of societies at all levels.

Sad to report, this fourth series of Call My Agent! (Netflix) will be the final outing for this caustically addictive saga of actors and their agents. The show’s unique trademark has been its success in attracting an impressive roster of A-list French actors and getting them to behave in outlandish and ridiculous ways, but maybe they’re just running out of suitably recognisable names.

The oeuvre of M Night Shyamalan has tended to veer between unsettling creepiness and sometimes hilarious misfires, but, working as Executive Producer with screenwriter Tony Basgallop, he’s hit the spot with this unnerving series for Apple TV +. Just back for its second season, Servant homes in on the fraught and freaky lives of Sean and Dorothy Turner.

Or, What The Durrells Did Next. Writer Simon Nye, writer/director Roger Goldby and star Keeley Hawes are all veterans of ITV’s Corfu-based fantasy, and while Finding Alice superficially resembles a thriller, like its predecessor it’s more of an undemanding family melodrama once you’ve peeled away the wrapping.

The discovery of a grotesque murder is the traditional way to begin a new series of Spiral, and this time around the cadaver belonged to a young Moroccan boy, nicknamed Shkun. He’d been beaten to death with an iron bar and stuffed into a laundromat washing machine. Of course, this was only the end of a piece of string leading Captain Laure Berthaud and her team into a labyrinth of organised crime and drug-smuggling.

History ain’t what it used to be, not on television at any rate. Recently we’ve witnessed the ongoing furore about the factual accuracy or otherwise of The Crown, while Bridgerton has cheekily galloped bareback over the conventional cliches of telly costume dramas.

“They’re only rich assholes. They don’t merit your concern,” serial killer and psychopath Charles Sobhraj (Tahar Rahim, A Prophet, Heal the Living), aka rich French gem-dealer Alain Gautier, tells his girlfriend Marie-Andrée in The Serpent as he steals passports and money from a couple of unconscious tourists he’s just drugged on a beach in Thailand in the mid-Seventies.

Okay, so some people taught themselves the violin or wrote a novel, but under this year’s circumstances, it was inevitable that television (terrestrial, cable, online or otherwise) was going to clean up. With large chunks of the population forced to stay home, what could be more natural than to reach for the remote controller to magic up another bingeable boxset or Walter's latest noir thriller?

Having launched their new-look All Creatures… back in September to wild acclaim, it was a no-brainer for Channel 5 to commission this Christmas Special. The only mystery is why they didn’t schedule it for Christmas Day, where it would probably have seen off most of the not-very-thrilling competition.