Glen A. Larson owns the motion picture rights and anything classified as theatrical in nature. This includes direct to dvd movies/spin-offs, or made for television "movies" with footage that is not shown on the air. Some companies have gotten around this issue by advertising "television events" which is usually several episodes woven together not part of the "series" itself that is still aired on tv and then released on dvd (BSG: Razor/The Plan). However even with these television "events" they are supposed to air first on tv before they are released on dvd. If they are released on dvd with alternative cuts (as most are) with footage that did not air on television, Larson still gets a cut of the royalties. It really comes down to specific terminology.
While NBCU owns the television rights, they cannot advertise their television series as having either a theatrical movie or a television "movie" or they have to pay up to release it. NBCU (at this time) cannot make a theatrical motion picture based on Glen's properties without his specific involvement or permission.
So in a nutsell, NBCU cannot make a motion picture based on Knight Rider or any other property that Glen still has the motion picture rights to. All they can do is keep trying to relaunch television series attempts. Even if they make made for tv movies like Knight Rider 08 was with the backdoor pilot, they still have to pay him and give him his proper creator/executive producer credits - they cannot legally go around him.
Glen has approved a deal with Universal (which is no secret now) to get a new Battlestar Galactica theatrical motion picture based on his "vision" to the big screen which is supposed to be directed by Bryan Singer. This is a feat Universal could not accomplish without him on board and as far as I know does not involve Ron Moore's vision of the property on television.
The BSG motion picture is based on Glen's original vision for Galactica and will be a reimagining of the original series but for simplicity sake essentially a "reboot".
...and yes Starbuck and Apollo are men
waging war against the cylons.