As the headline says, this is a single video that contains all 56 episodes of Star Trek, the original series, playing at once. With sound. For each of theme. I have no idea who made this, or why, or why anybody would spend their time watching it, but it seemed to bizarre not to mention. Incidentally, the "Impressive Acts of Nerdery" tag isn't really for whoever assembled the video, but for any of you folks who actually manages to sit through the whole damn thing. Thanks to Da Bearon for the tip.