Is this our Area 51? There are hangers – or traces of them – where baffling flying objects were analysed, tested and flown. There are earthworks that suggest some other-worldly subterranean stirrings.

Curious lines in the landscape. Blistered rail tracks where innovative technology was once put to work. There is talk – and sepia photos – of the long-dead who whispered tales of death and secrecy to their children.

Read more TV week: Aliens and alienation

Is this our Area 51? Low, flat wasteland, out of the way, uninhabited but with structures, now roofless, where people once experimented with unknown gases and died young from their inhalation. And where is this place anyway?

The Hoo. The what now? The Hoo peninsula, the low-lying land where the Thames and the Medway meet the sea. Aerial voyeur Ben Robinson flew his plane over the Dickensian spit and then landed for a closer look in The Flying Archeologist (BBC4) .

Not alien technology, of course, but First World War. The flying machines were airships, the earthworks protected people from cordite explosions at the munitions factories.

The Unbreakable Kimmy Schmidt (Netflix)

The lines are trial trenches as engineers figured out how best to fight on the Western front. The track into the river was where the first wire guided torpedo made a splash.

A curious place, unheard of in the main. People died there. A man who caused a spark with his chisel was blown, skinless, into a tree. Now idle sheep graze on artificial hillocks.

Meanwhile, joy returns to gaudy screens, dressed in pink, or an elf costume, and a dazzling, undimmable smile.

The Unbreakable Kimmy Schmidt (Netflix) is back for Season Two, the opener written by show creator Tina Fey herself. It’s still the same blend of Scooby Doo antics, stinging one-liners, and meta jokes on pop culture (“the internet talks like Chandler”) but with even more zest. That’s so Kimmy.