Digging Up The Daylilies

I'm listening to Talk of the Nation right now and they're polling people about their favorite Christmas specials. Mine are the 1964 Rudolph The Red Nosed Reindeer and A Muppet Family Christmas. Rudolph has the fabulous details of the elf who wants to be a dentist and the Abominable Snowman who makes sno-cones (who got a cameo in Monsters Inc). The Muppet one is a cross-over of Sesame Street, Fraggle Rock, and Muppets. The Swedish Chef is in charge of cooking dinner and wants to serve up Big Bird. Priceless.

What's your favorite TV Christmas special and what makes it so special?