Christmas movie episodes of MST3K

Better known for Thanksgiving Day "Turkey" mockathons, Mystery Science Theater 3000 has featured three Christmas movies:

• Santa Claus Conquers the Martians (1964), Experiment 321, hosted by Joel Robinson
• Santa Claus (1959), Experiment 521, hosted by Mike Nelson
• The Christmas that Almost Wasn't (Il Natale che quasi non fu 1959), Experiment 1113, hosted by Jonah Ray

Jack Frost (Morózko 1964), Experiment 813, hosted by Mike Nelson, isn't literally about Christmas but comes close if judged by U.S. television specials.

(via via Gavin Jasper at Den of Geek)