Thanks to Andy Baio, all five parts of The Machine That Changed the World are available online: http://waxy.org/2008/06/the_machine_that_changed_the_world/

The Machine That Changed the World is the longest, most comprehensive documentary about the history of computing ever produced, but since its release in 1992, it's become virtually extinct. Out of print and never released online, the only remaining copies are VHS tapes floating around school libraries or in the homes of fans who dubbed the original shows when they aired.

All 5 episodes are (sort of) available on YouTube.

(Originally published on my old site, “The Digital Imaginary” [imaginary.digital], on February 19th, 2015 – revised and republished April 2nd, 2025. The YouTube videos are blocked now, “on copyright grounds,” but they still play after a moment.)