Santa's Christmas Elf (Named Calvin) (1971)

Terrifying! Absolutely terrifying from start to finish! The horrible, grainy quality of the pictures, the eerie lighting, the creepy puppets complete with some of the most horrifying facial expressions imaginable, along with the creepypasta-like feel to it, make this one of the most unintentionally scariest Christmas "specials" ever made! If you don't wanna have nightmares for the rest of the month, then avoid this at all costs!