Kurt Vonnegut Jr.: A Self-Portrait (Video, 1975)

You can watch it here.

Clive Sinclair: The Anatomy of an Inventor (Video, 1989)

You can watch it in your browser here.

Museum (Video, 1980)

You can watch this half-hour documentary here.

Six American Families (Videos (four of six) and Book, 1976-1977)

You can watch four of the episodes of the documentary series here, and digitally borrow the companion book here.

Unseen Worlds (Video, 1990)

You can watch it here.

The Video Art of Doris Chase (Videos, 1967-1999)

You can watch it here. Includes short documentaries about her from 1974 and 1999. (Last screenshot is of a video montage from her 1993 Chelsea Hotel documentary.)

Unauthorized Access (Video, Annaliza Savage, 1994)

The 1994 hacking documentary. You can watch it here.

The Horror of it All (Videos, 1983)

A documentary about the history of horror movies. You can watch it here.

George Lucas: Maker of Films (Video, Jerry Hughes, 1971)

You can watch it here.

Nomads of the Wind (Videos/Book, 1994/1993)

Documentary about Polynesia. You can watch the complete series here, or digitally borrow the book here.

Episode order: The Faraway Heaven, Crossroads of the Pacific, Burning Their Boats, Distant Horizons, The Pierced Sky.

BBS: The Documentary (Videos, Jason Scott, 2005)

Message boards from before the internet as we know it. You can watch it here or here.

You can watch tons of raw interviews conducted for the documentary here.

The Height of Goth: A Night at the Xclusiv Nightclub (Video, 1984)

You can watch it here, and you can read the Guardian's article about it here.

Talking Turtle (Videos, 1983)

You can watch it here.

Pre-Cert Legends (Videos, M12 Productions, 2016-2017)

Fifteen one-man documentaries about the companies that released videos in Britain (such as the infamous 'video nasties') before the video certification law of 1984. You can watch them here, or most of them on YouTube here.

The Bread and Puppet Collection (Videos and Texts, The Bread and Puppet Theater, 1972-2015)

Video recordings and printed material from the politically radical puppet theater. They've been performing since 1963, and they're still going 60 years later! (Website, Instagram, Facebook)

Here's a documentary, and in case you can't find it, here's Part 2 of 2015's Overcarelessness Circus.

Alphabet: The Story Of Writing (Video, 1980)

You can watch it here.

The Rotten World About Us (Video, 1980)

You can watch this British TV documentary here.