This new four-part series sees the documentary maker revisit the highlights of his long and varied career, from cornering hucksters to run-ins with neo-Nazis

Louis Theroux: Life on the Edge (BBC Two), which showcased the highlights of the documentary maker’s 25 years in the weirdo-pursuit biz, probably wants to be called a retrospective rather than a clip job. I am feeling generous, so I will let you choose. But there were a lot of clips, and not much else.

But what clips they were. The first episode of four thematically arranged outings dealt with matters of belief. So we met – or re-met, if you remember his first appearance in the inaugural episode of Louis Theroux’s Weird Weekends in 1998 – Colonel Bo Gritz. The real-life inspiration for Rambo and the founder of the Almost Heaven covenant community, Gritz and his ilk were last seen hunkering down in the Idaho hills and prepping for war with the federal government and the ensuing New World Order. A brief Zoom call to catch up with the head of the community’s leading family, Mike, revealed that he has retained his old certainties and is impressed with Trump’s fearlessness in sticking it to the gubernatorial Man.