NCM Fathom Events and RiffTrax.com are overjoyed to bring the stars of Mystery Science Theater 3000 (MST3K) back to select cinemas nationwide on Thursday, December 5 LIVE at 8:00pm ET/ 7:00pm CT and tape-delayed to 7:00pm MT/ 8:00pm PT with a hilarious never-before-seen take on the family â??classicâ? Santa Claus Conquers the Martians. This one-night event will be your only chance to see the guys fire their wisecracking commentary at this holiday title on the big screen.