This is an awesome animated documentary of the creation of the Internet. Way back in 1999 I did a paper on the same topic. Back then information on the creation of the Internet was not as plentiful as it is now. ISOC has a nice page and of course there is Wikipedia. I had to scrape it together from various sources. While Usenet documented it rather well, it wasn’t considered an acceptable resource for research purposes.
Bonus for being in HD.