And you're a bit of a nerd like me, maybe you'll like this doc about modular synths ('I dream of wires') - no tangerine dream in it, but a bit of silver apples and some of the other pioneers (this is my field though, so ymmv)

https://www.imdb.com/title/tt3636334/

You might have to pay for it though - it was on sky, but they put in the Freeview sky channel recently where I saw it, so it might turn up there again