Those of us who saw the first, 1977 TV adaptation of Alex Haley's Roots in our teens still remember the shock and horror at its handling of a subject about which we knew little, American slavery. We know a lot more now, but the visceral reaction to inhumanity and injustice is no less strong. That's thanks to the high production values of the latest version, its gift for finding the right actors, and the often giddying cinematography of an honourable mainstream parallel to a towering masterpiece among movies, 12 Years a Slave.

A screaming comes across the sky. It has happened before, but there is nothing to compare it to now…

Tasmania, Down Under is like Canvey Island (although somewhat larger): everyone knows where it is but no one wants to go there. The Kettering Incident reveals why: the bleak but beautiful landscape is blasted by Antarctic gales and the natives, with few exceptions, are ugly devils, resentful of strangers and quarrelsome with their neighbours. And that’s just the humans.

From Jimmy Savile to the Rotherham scandal, child sexual abuse has become a recurring nightmare of our society, and thus is inevitably grist to the TV dramatist’s mill.

It takes a certain kind of perversity to make a true-life drama about a missing girl (Shannon Matthews) who wasn’t missing at all – the danger is that drama will be the only thing that’s missing. Neil McKay’s answer to the problem is to take a leaf out of Shane Meadows’s book of tricks and treat the whole sorry affair as a black comedy.

Guilty or not guilty? Dum dum, dum dum. No, it was not just in your imagination. As the axe hovered over the neck of Yvonne Carmichael at the climax of Apple Tree Yard, and the madam forewoman waited to deliver the jury’s verdict, there was an entirely synthetic and deeply irritating pause for dramatic effect. Guilty of the murder or manslaughter of George Selway? Dum dum. Dum dum. Or innocent? Dum dum.

There's nothing like a tale set in a warm, exotic climate to lure in the viewers in damp and wintry northern Europe. Send the Nonnatus House midwives to South Africa for Christmas! Shoot a ridiculous detective drama in Guadeloupe! Go back to the Raj with Channel 4's Indian Summers!

There were signs of a collision as early as the second series. The event loomed larger in the third last year and last night, after an actual car crash, it finally happened: Endeavour became interchangeable with Midsomer Murders. How are the mighty fallen.

Another night, another woman battered/strangled/raped/murdered. On Sunday a pregnant woman was brutally slapped about by her husband in Call the Midwife, while Emily Watson’s character in Apple Tree Yard was the victim of a punishment rape. And so it continues in Case, the latest Nordic noir to make its way here, this time from Iceland. It opened with two police officers making their way to the stage of a theatre.

Only the final 60 seconds of this first episode of Apple Tree Yard could have been described as a psychological thriller. We know Dr Yvonne Carmichael is in the dock – the genetic scientist was shown handcuffed in a prison van right at the start – but we don’t know what she is supposed to have done. The remaining 55 minutes comprised a familiar tale of middle-class adultery and low-lit longing.