National Lampoon has a list of the 10 worst Christmas specials ever. My favorite is a lost Star Trek (TOS) episode.
Mr. Spock, with his pointy ears, is hailed as a messiah on a wintry world where elves toil for a mysterious master, revealed to be Santa just prior to the first commercial break. Santa, enraged, kills Ensign Jones and attacks the Enterprise in his sleigh. As Scotty works to keep the power flowing to the shields, Kirk and Bones infiltrate Santa’s headquarters.


