Once again the incredible healing powers of Gareth Malone swung into action, as his quest to find a universal anthem for the Covid crisis boiled up to a climax (BBC Two). Considering that he’s been masterminding his Home Choir and his songwriting quest over broadband links from his garden shed, he has managed to tap into an amazing shared reservoir of pent-up emotions.

The spoof “rockumentary” always sounds like a great idea, but it’s hard to pull off. Largely this is because rock stars are so divorced from reality that an element of self-parody is already built in, albeit unwittingly (“everybody’s so different, I haven’t changed” as Joe Walsh deadpanned in "Life's Been Good").

Singing in a choir can be terrific therapy for anxiety, depression or loneliness, but one of the cruellest effects of the coronavirus is the way it has restricted normal human interaction. The notion of social distancing might have been designed to sabotage the proximity and togetherness which is so much a part of collective singing.

Setting his third series of A House Through Time in Bristol (BBC One) was a stroke of inspired prescience for historian and presenter David Olusoga.

David Olusoga’s A House Through Time concept (BBC Two) has proved a popular hit, using a specific property as a keyhole through which to observe historical and social changes. After previously picking sites in Liverpool and Newcastle, this time he’s chosen Bristol, the city where he has lived for over 20 years.

Originally aired in BBC2’s “Theatre 625” slot in July 1968, Nigel Kneale’s The Year of the Sex Olympics has gathered a reputation as a groundbreaking piece of TV drama which uncannily anticipated the broadcasting future.

Creating the opening episode of a new comedy series is like flipping pancakes with one hand while playing the Moonlight Sonata with the other. You have to introduce your characters and invent the world they live in, while squeezing in enough plot to keep the action moving.

Some things never change in Our Girl. At the beginning of 2018’s Series 4, military heroine Georgie Lane (Michelle Keegan) had been traumatised by the death of her fiance Elvis Harte, killed in Afghanistan at the end of Series 3.

This patchwork of interviews and comments from male journalists and politicians interspersed with clips from television news and films, from The Godfather to The Avengers, was a zig-zag narrative of Dominic Cummings’s unique career as a political strategist.

Since Back in Time for Dinner in 2015, this BBC Two social history strand in which families travel into a recreated past to experience ways in which society, leisure and lifestyles have changed has proved a robust perennial.