Prior to the release of ST:FC, there's a special on HBO called Star Trek: Beyond First Contact which the behind of scenes of ST:FC, does anybody remember that special?
Yeah. It was actually one of their better First Look specials. It featured behind the scenes footage not seen on the DVD along with interviews with Borg make-up effects technician Todd Masters, costume designer Deborah Everton, and actor Neal ("Lt. Hawk") McDonough. Too bad Paramount didn't include any of that on the DVD/Blu-Ray release.
As for the other TNG films:
-Generations got an E! Channel premiere special but I don't recall any other TV making-ofs (did the Sci-Fi Channel do something?)...
-Insurrection got four (I think) short behind the scenes promos on UPN during ST:VGR commercial breaks...
-I don't remember Nemesis getting anything at all...