In my posts covering the first season of Computer Chronicles, I noted that some of the episode recordings included interstitial segments presented by Herbert Lechner, who also occasionally guest hosted for Gary Kildall during this 1983-84 period. These segments were part of a “telecourse” marketed by Wadsworth Publishing Company as part of its “continuing education professional series.” The idea was to pair the first 26 Chronicles episodes with a companion textbook for students to follow along and learn more in-depth about the topics discussed on the show. Lechner authored the book (as H.D. Lechner) in addition to hosting the special segments.