I bet there just wasn't that much behind the scenes footage to be found; people didn't tape home movies the way we do now. At least there is one interview!
And.... REALLY...
Formats: Color, DVD-Video, Original recording remastered, Widescreen, NTSC
WideSCREEN! WHOAAAAhhhhh..... WhOAAAhhh.... (a dozen points to whoever gets that one)
An interview is as good as we can hope for, to say the least. DVD's of current movies have hours and hours and separate disks of 8 different making of features you never really get around to watching, deleted scenes that basically say, "In case you were curious, there's a scene that didn't need to be used here..." 20 minutes of actors forgetting their lines and tripping over props, and basically a lot of other stuff that screams, "Why did you bother going to see it in theaters? We pretty much just release these to DVD anyway" Indeed, new movies are made to have a short run in theaters before they make the real money.
But things like FTB, and others... all that stuff was junked and unless someone had a copy of something in their basement (Weird Al had a VHS of all the stuff cut from UHF, and that's the only reason it existed).