All is not well in Boston, Lincolnshire. Unemployment, immigration concerns, Brexit frustration, and the highest murder rate in the country. How do you solve the problems of contemporary Britain? Send in an American. And not just that. Bill Hixon (Rob Lowe) is the best: educated to Doctorate level, with the accolade of being America’s top Metropolitan police chief three years running.

The first film in this extraordinary series, Seven Up!, was made for Granada Television’s World in Action in 1964. It picked 14 seven-year-old British children from different social backgrounds, aiming to revisit them every seven years to see how their lives were progressing. Paul Almond directed the first programme, but ever since this has been Michael Apted’s baby.

Have we passed peak Hatton Garden? It’s now four years since a gang of old lags pulled off the biggest heist of them all. They penetrated a basement next door to a safe-deposit company, drilled through the wall, and made off with many millions quids’ worth in diamonds, cash and the like. All but one of them ended up in prison, where they will probably see out their days, being all of them well past pensionable age.

In the past, Bear Grylls has taken President Obama up an Alaskan glacier and trekked through the Swiss Alps with Roger Federer. This jaunt with David Walliams (ITV) was on a more modest scale, merely requiring the Britain’s Got Talent judge to be dragged across rivers and down rock faces in wildest Devon.

Are brothers Harry and Jack Williams mounting a takeover bid for British TV? They’ve written (among other dramas) The Missing, Liar and Baptiste, and they produced Fleabag. However, judging by their co-writing efforts on The Widow (ITV) they’re spreading themselves thin.

 ITV has an enviable knack for creating populist historical costume dramas which never seem to wear out, despite a million rotations on ITV3.

In the 1970s, the Mancunian stand-up Colin Crompton had a famous routine about Morecambe. He characterised Morecambe as “a sort of cemetery with lights” where “they don't bury their dead, they stand them up in bus shelters with a bingo ticket in their hand”.

As fans of Inspector Morse are well aware, there are plenty of snakes lurking in the grass at our premier seats of learning. In place of Morse’s Oxford, Cheat brings us leafy, picturesque Cambridge, presented here as an agreeable haven of historic quadrangles, relaxing riverside bistros and alluringly wooded suburbs.

The end of series five of Endeavour found PC George Fancy shot dead, Cowley police station closed and the old crew dispersed. With Led Zeppelin on the soundtrack (it’s 1969), the sixth series opened minus WPC Trewlove, but with Fred Thursday demoted and shunted off to Castle Gate police station.

How much more is there to say about the thrills and spills of midlife? Cold Feet made a surprisingly nimble return to ITV a couple of series ago after a long furlough. There was little evidence of stiff joints or saggy bottoms in Mike Bullen’s writing as he welcomed a gang of teens to the cast list.