The Kenwood Chef! Intercity 125! Kodak Instamatic! Wilkinson Sword disposable razors! Bus shelters! Parking meters! They were all designed by a British genius, Sir Kenneth Grange, who appeared here as the subject of a short and disarmingly confident interview, intiating a series of such interviews. The programme marked the opening weekend of the £83m transformation of the Grade2* redundant Commonwealth Institute in Kensington into the new Design Museum, which showcases both British and international contemporary design.

“Why is everyone from your school a criminal crackhead?” “Why is everyone from yours a Tory minister?” These questions lie at the heart of Zadie Smith’s NW. Keisha (the wonderful Nikki Amuka-Bird), aka Natalie, is married to wealthy Frank (Jake Fairbrother), who’s asking the crackhead question. Leah (Phoebe Fox), who answers back, is her best friend – though that’s no longer a given.

Got Soul! Honeybelles! Mums in Durham! Three shortlisted finalists from the north and Scotland. Along the way we – and Gareth Malone – were sung to by the Mancunian Rhythm of Life, not to mention Too Many Cooks in Inverness, and a septuagenarian all-male group from Malton kept in order by a retired schoolmistress, who had evolved into a disciplined conductor – and had a fit of the giggles when faced with Mr Malone.

We’re all comfortable with the concept of actors presenting documentaries about endangered species. A famous name helps to bring an issue into the light. It was slightly different with A World Without Down’s Syndrome? Sally Phillips, the much-loved comic actress who plays sidekicks to Bridget Jones and Miranda Hart, has a son with Down’s Syndrome. Olly, as the opening sequence amply revealed, is a delightful boy at the heart of a loving family. “I was expecting tragedy," explained Phillips, "but I got comedy.”

The procedure of introductions in Louis Theroux: Savile seemed somehow more elaborate than usual. Knocking on the door of those he was about to talk to for what might have been dubbed “Savile Revisited”, Louis Theroux was unusually careful about his greeting ritual: “I’m Louis”, “Can I come in?”, “Should I take off my shoes?” That last one was perhaps the fairest question here, because he was bringing all sorts of past horrors and dirty deceits into these clean and tidy homes.

The cliffhanger ending of series two – will serial killer Paul Spector survive his gunshot wounds? – has been quietly defused, since Spector (Jamie Dornan) now has series three stretching out ahead of him. What was less expected was that this opener would look like a homage to Sky One's appallingly graphic surgical drama, Critical.

Damned (★★★) is the third comedy drama in what could be termed Jo Brand's social/healthcare triptych (after Getting On, set in a geriatric hospital ward, and Going Forward, in which she appeared as a care-home worker). Damned, in which she also stars, is set in a child protection social services unit.

This look back at the events earlier this year when the country elected to buy a car, sight unseen – and from proven liars – to drive us into an imagined and politically unstable future, was a little confusing to me at first. Now, I do remember a fat, milky manchild holding a pasty aloft like some kind of magic totem – that definitely happened. I remember Toad of Toad Hall standing in front of a deeply racist poster hoping to elicit passion from patriots on the very same day that a Labour politician was brutally murdered by an angry racist.

In film and photography, zoos and on safari (we should be so lucky) we admire the great cats, kings of jungle and forest, top of the food chain, predators, and gorgeous to boot. But in spite of this admiration, some human populations hardly bear affection for the cheetah or lion because of their perceived threat to cattle, while human encroachment on their habitat is leaving many a feline population vulnerable and endangered.

Motherhood seems to be a thing for Sharon Horgan at the moment. First came Catastrophe, the Channel 4 comedy about unplanned parenthood she writes and co-stars in with Rob Delaney, and now Motherland, a pilot co-written with Graham and Helen Linehan and Holly Walsh for the BBC.