The magazine that Tom Servo is holding during the Beauty Shop skit is the April 1991 issue of Cosmopolitan.
This is the second episode of Mystery Science Theater 3000 to feature the film "Gamera." It was first riffed by Joel and the bots during the first season of MST3K which aired on on KTMA in Minneapolis, Minnesota.
This episode is on the Volume 21 DVD Box Set of Mystery Science Theater 3000.