Every once in a while I like to review an episode of Star Trek on You Tube. For a long while, it seemed that most of TNG, DS9, VOY seasons and some parts of ENT were available. But recently doing a little jumping around, I've been discovering a lot of episodes where parts are missing (usually 4th or 5th segment). Has anybody else noticed this? I've heard YouTube sometimes does this to spoil a copy while leaving enough content as a form of "advertisement" (meaning, someone starts watching a movie but can't finish it, so it becomes incentive for them to rent/buy it).