Yet the show's best gag by far is one that has been revealed in every trail for the series, every description of it, every article: Johnny (Don Gilet) has two girlfriends, both pregnant.

BBC: Babyfather plays with stereotypes

He looked like a security guard in a suit and hi-viz gilet, but he unfurled a banner saying "Nuclear: wrong answer", and as he crawled along a high iron girder, the word "Greenpeace" was revealed on the back of his jacket.

BBC: DETAILS OF TONIGHT'S PROGRAMME