Emcee Michael Palin, as William Makepeace Thackeray himself, introduces us to the show: “Yes, this is Vanity Fair; not a moral place certainly; nor a merry one, though very noisy.” All his major characters – or “puppets” – are riding a fairground carousel. They – and very soon, we – are having a great time.

It’s been a long haul for Keeping Faith. The drama was shot in Welsh and English simultaneously, and premiered in the former with subtitles on S4C at the back end of 2017. It switched to the latter language on BBC One Wales earlier this year. Word spread like a benign bubonic plague of its tendency to grab you by the throat and not let go.

It was always a question of when. As in when would the hoity-toity Home Secretary and her poker-faced bodyguard move into the horizontal? “I’m not the queen, you know,” she said, by way of a hot come-on. “You can touch me.” As a mode of discourse, this marked quite a step-up from the first episode of Jed Mercurio's new drama. Then the Rt Hon Julia Montague didn’t even want his vote. Now she was after her bodyguard’s body. “I Will Always Love You”, anyone?

Television drama is living through a golden age, yes, but one thing mainly absent from the vast choice available on terrestrial and streaming broadcasters alike is the short story. Short dramas used to be a regular fixture on television, when schedules were more fluid and pre-satellite channels less risk-averse. Half an hour in and out to tell a punchy story on a low budget – it was a keen test of a writer’s mettle, and a good way to blood talent.

Some contend that this Snowdonia-set mystery was a Scandi hommage too far, a mere recycler of gloom-shrouded riffs familiar from the likes of The Bridge or The Killing. Well yes, there was that element to it, but if you stuck with it it grew into far more than a mere copycat procedural.

How well do you know the person you love? Are they someone completely different when you’re not around? This is the central question Eve Myles (main picture) has to answer in the BBC’s latest mystery drama. Faced with the sudden disappearance of her seemingly lovely husband, she must piece together where he’s gone and what she’s been missing.

How many people were watching Picnic at Hanging Rock as it took its bow on BBC One? This opening episode happened to be preceded by a rival attraction on ITV.

Based on the novel by Gillian Flynn (author of Gone Girl) and directed by Jean-Marc Valleé (who helmed last year’s award-winning Big Little Lies), HBO’s Sharp Objects arrives trailing a cloud of great expectations. Happily – albeit depressingly given its corrosively dark subject matter – it exerts its grip with increasing force, once you’ve committed yourself to stick with it past the first couple of episodes.

You don’t see a lot of German drama imported to British television. France, Italy, Scandinavia, yes. But the biggest country in Europe is less of a player. The great exception – and it really was great - was Deutschland 83, a thrilling hit when shown on Channel 4.

There was a time when Hugh Grant was viewed as a thespian one-trick pony, a floppy-haired fop dithering in a state of perpetual romantic confusion. But things have changed. He was excellent in Florence Foster Jenkins, hilariously self-parodic in Paddington 2, and he’s brilliant in A Very English Scandal (BBC One) as smooth, treacherous Liberal leader Jeremy Thorpe. At moments, he even manages to look uncannily like him.