And upon further review, there's something of incredible interest.
At UCLA, I stumbled upon a show called "The Game Show Show", which had interviews with Dennis James, Monty Hall, Jack Barry, Chuck Barris and Ralph Andrews. Interspersed with the show were many stills of shows, color stills, that were obviously taken off a TV rather than publicity slides. It stated it was produced for KCET.
Now if you look at
this page, there is an advertisement for not only that special, but also an advertisement for the slides used in the special and "highlights of 25 shows".
I wonder if I can still buy a copy.