[SIGCIS-Members] First instructional videos for Macintosh?

Hi SIGCIS members, I'm working on a radio story about the history of personal computing. I would like to find instructional videos for the first Macintosh or other personal computers. The goal is to give listeners a sense for how new and incredible the idea of personal computing was in the 1970s. ​Does anyone on this list know of where I could find such videos? I haven't been able to find anything on YouTube but I'm hoping to be able to track down a few instructional videos (or at least the audio portion of the videos). Thanks! Luisa (510) 856.7475 http://luisabeck.com/