Fan-made video I made some years ago which edits the audio from Rifftrax's Plan 9 mp3 and makes it look like MST3K did it instead.

BUY THE FULL RIFFTRAX PLAN 9:

http://www.rifftrax.com/ondemand/plan-9-three-riffers-vod

MST3K copyright Best Brains

Rifftrax copyright RiffTrax, L.L.C