When Grandpa's sorcery summons Santa Claus from the North Pole near xmas, The Munsters make the best of it while a counter-spell can be concocted. In the meantime, party-seeking elves inadvertently turn Old St. Nick into a fruitcake, Lily excels in a holiday decorating contest, and Marilyn falls in love with a biker, whose fellow cyclists help Santa on his journey.
The Munsters series never had a specific xmas episode until this 'special' aired; and neither did they have a specific Halloween episode until 'The Munsters' Revenge' film aired much later. Still, an amusing take on the Santa myth. ∞