First Doctor Who 2013 Christmas Teaser Released

Note: I haven't seen Day of the Doctor yet, so please-no spoilers in the comments!

Spoilers Below!

Anyway, oh my giddy aunt look at this trailer! Not only will I be balling my eyes out Christmas, I won't sleep a wink that night at all-I've been terrified of the Cybermen since I was little, and the Weeping Angels freak me out. The Silence are creepy as well.
 So what can we tell from the trailer?
 Daleks, Cybermen, Weeping Angels, Silents, and Trenzalore. Feeling the merry yet? Going back, I don't think we've ever had a completely happy Christmas Special. Looks like this one will be on the horror scale along with the sobbing scale.

Geronimo,
-Tegan