Well, I remember that a collector had promised to bring his video copy of this program to the Festival for audience viewing at one of the Festivals, and the person failed to show up, which is why it was canceled.
The same thing has happened, I believe, with the video of the 1966 version of the Arthur Miller play about Salem witchcraft, The Crucible. It includes Thayer David and Clarice Blackburn in supporting roles.
Another good one I hope to see surface one of these days is Back to Back, an hour long drama shot on film in color for the 1965 season of the Bob Hope Chrysler Hour. Grayson had a very juicy supporting role (playing opposite Shelley Winters and Jack Hawkins in the leads), but it's never shown up anywhere.
G.