The owner of this Youtube channel works at VPRI with Alan Kay. I believe he mentioned he got a bunch of these tapes from Alan, which he has then been digitizing and uploading now and then.<p>A number of these ACM talks were recently made available on Youtube by the Computer History Museum [1], with talks&#x2F;reflections by Butler Lampson, Chuck Tacker, Doug Engelbart, Larry Roberts, Gordon Bell, and many more.<p>[1] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;user&#x2F;ComputerHistory&#x2F;videos" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;user&#x2F;ComputerHistory&#x2F;videos</a>