The Berman video did come out in DVD format, I have one. I'll follow upon the suggestions, we have a BBMS board meeting Saturday and I will find out what attempts have been made so far.
I wrote an article that appeared in the Fest program in 2009 encouraging people to read the Bix books and to view the Berman video. I didn't realize the Society was down to just a few copies of the video and have since sold out. Like membership in the BBMS, I think all Bix fans should have this DVD also.