I don't know who put this together or who uploaded it to YouTube - it looks like it's assembled from bits of interviews that we did for the eventual Exeter "special features" - but while looking over there for an old Starship Farragut trailer with Don LaFontaine's voice-over I found this mini-documentary about Exeter:
EDIT: Looks like it was uploaded by Stan Ginsel, one of the producers. I don't know anything else about it.
The end of this one says - Stay Tuned for part 2
So, given Exeter's history, I gotta ask: "Okay, how long do we have to wait for this now, too?"