The original Star Trek debuted in 1966. Monty Python and the Holy Grail came out in 1975. And the mashup YouTube hit went viral in 2006. I had forgotten all about it, and it's just a funny as the first time I saw it. The song from Monty Python is well illustrated by select Star Trek clips, and reminds us of how goofy that show could be once they ran out of truly science fiction plots.
The video was originally created by T. Jonesy and Killa, but they have no web presence, some say because of copyright issues, so we really don't know exactly who did this. But they did a very good job, back when there were fewer editing tools to find, collate, and synchronize disparate audio and video sources. (via reddit)