The Simpsons - All 15 Christmas Episodes Ranked
5. Holidays Of Future Passed
Oh, future themed episiodes of The Simpsons, what an uneven bunch you are! Remember "Smell ya later?"
It was certainly a gamble, combining two concepts - future Simpsons, and Christmas Simpsons - for one single episode, but the show pretty much pulled it off with season 23's Holidays of Future Passed.
The story sees the Simpson family of the future reuniting for Christmas, with Lisa and Milhouse together (and not played entirely for awkward humor), Bart trying to be a father to his two sons, and Maggie as a pop star (who still never speaks).
There is some absolute gold in this episode, including the fact that Grandpa has been cryogenically frozen after contracting a disease for which there is no cure. Only, there is now a cure - but Homer didn't bother to thaw him out, because he's too much of a surly crank.