I found a website that sells military video and they have some vintage dive stuff. They are www.militaryvideo.com. Under their navy listings they have the following dive videos:
Frogmen of the 1950s Underwater Demolition Teams Sea Lab 1 and 2 Sneak Attack Craft of WWII
I bought the second one and it has an episode from the old TV series, Navy Log, about UDTs. The videos are $29.95 for the first and then $19.95 for additional videos on the same order. Shipping in the US is free. I plan to order some more next payday. The quality is excellent.
Dr John Lundy (Retired) Medical Examiner Division Oregon State Police Clackamas, OR