I think there are only something like 30 episodes ( out of the 172 that they produced ) available on video/DVD, the main problem being licensing fees. Apparently, after agreeing to let the show use their respective films for virtually nothing, the companies who hold the rights to the movies MST3K parodied will not allow a proper video release unless Joel, Mike & company cough-up big bucks for the rights. A pity, as some of the best episodes have never appeared on video. Supposedly, executives from Toho Co. were shown the MST3K versions of a couple of Godzilla epics and were extremely pissed ( american meaning ) stating that Toho would never, ever license the rights for a release and threatening a lawsuit if they ever did it again.