Only working copy of 50 year old computer program found when cleaning out office [video] (youtube.com)

From HN guidelines: Otherwise please use the original title, unless it is misleading or linkbait; don't editorialize.

You're not exactly new here, afaict...

Discussion at the time: https://news.ycombinator.com/item?id=45840321

And more developments and analysis since:

An initial analysis of the discovered Unix V4 tape

https://news.ycombinator.com/item?id=46367744

Unix v4 (1973) – Live Terminal

https://news.ycombinator.com/item?id=46468283

Fixing a Buffer Overflow in Unix v4 Like It's 1973

https://news.ycombinator.com/item?id=46544610