More than 30 years ago, stand-up comedian Joel Hodgson created a unique comedy show for a St. Paul, Minn., television station. “Mystery Science Theater 3000” featured Hodgson and a pair of robots forced to watch old B-movies, with only their running commentary keeping them sane. MST3K became a cult TV show, moved to cable networks like Comedy Central and Syfy, and even produced a feature film.