Zack Smith has done a deep roundup of the best in Christmas Specials, "with a number of links to unedited versions of lesser-known specials including an unedited MUPPET FAMILY CHRISTMAS with original commercials, a "Shalom Sesame" from Israel with a Hanukkah theme and a British airing of Raymond Briggs' THE SNOWMAN with a live-action intro by David Bowie as the grown-up version of the little boy in the story. The Star Wars special is not in here because, well…the world has suffered enough. Also wrote up a look at the many specials of Rankin-Bass, and how they do or don't tie into one another.
The Spirit of Christmas Specials, Conclusion: Beyond Charlie Brown and the Grinch!
(Thanks, Zack!)