Sorry for yet another Christmas entertainment thread ... but this didn't seem to fit the other one.
What are your favourites? Not Christmas specials (Grinch, Charlie Brown, Frosty etc.) ... but Christmas episodes of regular TV series.
Thanks to my rather embarassing TV-on-DVD collection I watch some or all of these every year:
~ All the West Wing ones ("Holy Night" being my favourite, even if it's the least "Christmassy")
~ All Creatures Great and Small -- "Merry Gentlemen"
~ various M*A*S*H ones, favourite is "Death Takes a Holiday"
~ The Vicar of Dibley -- "The Christmas Lunch Incident"
~ Mr. Bean
~ Glee – “A Very Glee Christmas” (I stopped watching Glee ages ago but this ep. is still a winner IMO)
~ Studio 60 – “The Christmas Show” (I get goosebumps every time I hear that jazz rendition of "O Holy Night")
~ Sportsnight – “The Six Southern Gentlemen of Tennessee”
~ Doctor Who -- "A Christmas Carol" (and this year I plan on re-watching "The Doctor, The Widow, and the Wardrobe")
And I'm sure there are others I'm not remembering right now ...