Related. Others?
APL Demonstration (1975) [video] - https://news.ycombinator.com/item?id=32118279 - July 2022 (1 comment)
APL Demonstration (1975) [video] - https://news.ycombinator.com/item?id=21104698 - Sept 2019 (51 comments)
APL Demonstration From 1975 [video] - https://news.ycombinator.com/item?id=7817593 - May 2014 (7 comments)
APL demonstration 1975 [video] - https://news.ycombinator.com/item?id=6155639 - Aug 2013 (1 comment