If last week's opener in this three-part Punk Britannia documentary was the preamble, the background, the story of what punk came out of, then this is it – the real deal. We're up to 1976, and, in London at least, small pockets of pogo-ing are beginning to break through the torpor.
Then, in 1976, the Sex Pistols went on The Today Show. Johnny Rotten said "shit", Steve Jones called host Bill Grundy "a dirty fucker" and suddenly everyone knew about punk.
It really doesn't seem all that shocking now. Rotten looks like a naughty schoolboy whispering a bad word in class; Steve Jones may have drunk a bottle of Blue Nun (mmmm …), but he was also right: Grundy was a dirty old man, for suggesting on air that Siouxsie Sioux, about half his age, should meet him after the show.