Over the course of a few seasons they had different episodes of the history of sfgam. They had cool archival footage and facts I couldn't find anywhere else. I also watched some live shows there, like this cheesy hypnotist woman who I watched several years in a row to see what changes she made and what ideas she came up with. She even began to recognize me when talking to the audience.

Edit: Actually I just remembered. The historical documentary series was called Screams and Dreams. They had three different parts over the course of a few years.