Here's some video I shot a couple of years ago at GatewayCon. This is the original pilot episode of MST3K that Joel Hodgson and Jim Mallon used to sell the show to KTMA. As Joel says, it's pretty much a proof of concept to help people understand the idea of what he had in his head.
Appears on these pages
During the first run of Mystery Science Theater 3000, the show aired on TV23 KTMA in Minneapolis...