There are some segments posted on YouTube, along with what looks like the whole thing (about 80 minutes of video).

A processing speed excerpt is here:

At first glance it is not sexy (looks like it dates back to a time when *I* was still in grade school) but the content seems good.

Look at related videos to find more. There are also excerpts from It's So Much Work to Be Your Friend.

Thanks for posting about this resource, I think I am going to be throwing some money to PBS.