https://archive.org/details/colossus-the-forbin-project-1970...

here is the direct link of the video which starts at 1800 seconds.

Offtopic: Fun fact but aside from archive.org there is also a way to have a link which links to any direct video at any time.

Someone made a good HN article about it that I vaguely remembered[0]

[0]: https://www.autodidacts.io/how-to-deeplink-to-specific-part-...