The Elite
BOSS
Anyone notice the Christmas theme going on?
Asylum of the Daleks: Surrounded by hundreds of Daleks, the Doctor goads them into exterminating him, giving them a free shot, saying "It's Christmas!"
Dinosaurs on a Spaceship: Rory mentions how he's 31 and doesn't have a Christmas list, the Doctor yells out in response that he does.
A Town Called Mercy (it's from the trailer, but I'm still tagging it to be safe):The Doctor notes all the anachronisms in this old west setting and wonders who has been reading from his Christmas list.
It may relate to JLC's (re)appearance in the Christmas special and "remembering".
Maybe the episodes were supposed to air closer to Christmas and these little comments were meant to be "in the spirit."
Or Christmas as we know it will never be the same.