I've found many good (mostly black-n-white) historical snippets by searching on YT for persons related to computer history (for example Von Neumann, Hopper, Feynman, ...). A lot is related to wartime efforts, as there seemed to be a real need there..

But there's certainly no shortage of books [0] about the subject, and I'd recommend to start there to get a list of names and key events first.

If you're looking for entertainment (although there's multiple good documentaries listed there too): [1]

HCF is something I'm planning to check out soon!

[0] https://news.ycombinator.com/item?id=22907211

[1] https://en.wikipedia.org/wiki/List_of_films_about_computers