I'm surprised that the 80s episode didn't mention the (in)famous red triangle films. That was surely quite a defining thing in establishing C4 as edgy.
Not much mention of Film on 4 in general - thought Walter would be in there but they opted for P'tang, Yang, Kipperbang from the second night instead, which I'd never actually heard off (having not been born till a few months later).
Interesting they haven't been showing off much of the '10s graphics until tonight. I did see a few countdown graphics featuring it but not as many compared to the other eras.
Nice titlecard.