SilverWook said:

If he has the Trek documentaries that were only released in Japan, I'd be envious. ;)

In the similar Star Trek original series laserdisc listings webpage http://www.blam1.com/StarTrek/OriginalSeries.htm, a quick search shows both ..
"This television special, produced in 1988, provides a brief history of Star Trek up through it's 20th Anniversary." [THE Star Trek SAGA: FROM ONE GENERATION TO THE NEXT]
.. and ..
"Following the pilot episode, there is a behind-the-scenes look at "Star Trek: The Next Generation" and a look at the upcoming "Star Trek V" feature film."
.. for the JP LD of The Cage (full color). Are those the documentaries to which you were referring?

@ _,,,^..^,,,_

Use healthy skepticism when gathering info from LDDb. I've discovered missing critical information (which is misleading by it's absence) and other information that is just plain wrong -- in what they accept from well-meaning posters -- as documented in our Cinerama 70mm 2001 preservation. Is it possible? (Page 5).