Wow...that's an oldie...38 years old!
I'm not sure I still have the master for that video. I stopped selling it because the video technical quality was not up to today's standards. It was MASTERED on VHS and edited to 3/4" U-Matic tape! Ugh. But...that was all I had to work with in 1978.
I'll see if I still have the master somewhere, and then I'll have to see if I have a 3/4" machine that still works.