On Monday ITV showed BAFTA Celebrates Downton Abbey, in which a massed gathering of cast and crew plus a few celebrity guests toasted Downton's five-year stampede to global acclaim. Its creator Julian Fellowes waddled onstage and told an anecdote about how he'd been accosted by a Downton fan while browsing in a Barnes & Noble bookshop in New York. "Just let Edith be happy!" she wailed at him.

The sclerotic culture of dithering that afflicts the higher-ups at the BBC has been mercilessly exposed in W1A. It turns out that fear of failure was always a managerial thing at the corporation. How else did Dad’s Army have such a bumpy ride to birth? As told in We’re Doomed! The Dad’s Army Story, one of the most enduring sitcoms ever made was very nearly never made.

It stands to reason that the contents of a prequel can never be entirely surprising. Some details have to be constants, some plot twists left unturned. As soon as it became clear that the second series of Noah Hawley’s Fargo predated the events of the first by some 25 years, we knew that state trooper Lou Solverson (Patrick Wilson) would be left standing at the end of it. But of all the things to have as a constant, Wilson’s sympathetic portrayal of the steadfast cop was as secure a tether as they come.

Was it just my bewilderment, or were there even more criss-crossing narratives than usual in this third series of The Bridge? As in, unusually expanded levels of human traffic, in various forms of distress, flowing under said structure.

“Bohemian Rhapsody” is, depending on who you listen to, either a work of unparalleled theatrical daring and creative genius or an unlistenable descent into ludicrously self-indulgent toss. Of course, these are not necessarily contradictory positions... Me? Well, I’m revisiting Queen now that I have an eight-year-old fan living in my house, and it’s been quite the eye-opener, as was BBC Four’s documentary.

ITV’s Manchester crime series Prey has, like a Premiership football club bought by a billionaire, returned for a new season with the same name but different faces. But these aren’t the shiny young faces of virtue that populate the footballing aristocracy. Prey focuses on compromised officers of the law: righteous protagonists gone to the bad, who lend the plot intriguing shades of grey that match its moral tone with the weather and scenery.

Some things never change. Once more, we join DCI John Luther – though only for a two-part special – as he glues himself to the trail of a serial killer. And once again Luther is played by Idris Elba, a man who can freeze time or make villains throw down their weapons merely by gazing into the camera with an expression of quizzical world-weariness.

The second instalment of this three-part series on the history of Spain (from the BBC in collaboration with the Open University) told a tale that is probably still relatively unfamiliar in the Anglophone world. That’s despite the fact that one of its star turns was the financing by that fervently religious 15th century Iberian power couple, Ferdinand of Aragon and Isabella of Castile, of the legendary voyage of Christopher Columbus.

The caption on Victoria Derbyshire’s morning programme said it all: "Tim Peake Blast Off". Tuesday morning is usually a quiet backwater of daytime TV, but today it hosted the most frenzied focus on space travel in the UK since Helen Sharman flew to the Mir space station in 1991. Nearly a quarter of a century on, British interest has peaked once again as Major Tim Peake became the first Briton to blast off for the international space station.

Though Alfred the Great was renowned for educational and social reforms as much as for whupping the Danes on the battlefield, I'd never pictured him the way David Dawson has been playing him in The Last Kingdom. Pallid and sickly-looking, and plagued by all-too-human frailties, this Alfred looked more like a weedy consumptive poet than the midfield dynamo of embattled Ninth Century England.