MST3K Ep. 201 - "Rocketship X-M"
A rocketship is accidentally diverted from the Moon to Mars, where the crew finds the ruins of a Martian civilization and a band of rogue survivors.
Stars Lloyd Bridges (of Airplane! and Hot Shots fame) as Colonel Graham, and features Noah Beery, Jr. as Major Billy Corrigan.
First appearance of Frank Conniff. First appearance of Kevin Murphy as Tom Servo.