'The Time of the Doctor' Extended Trailer Released

With only a week left until "The Time of the Doctor," an extended trailer has been released. While it begins with some Christmas festivities and cheer, it appears as if the universe is on the brink of a second Time War. How will the Doctor save everyone this time? Tune in on December 25 at 9 p.m. ET to find out and say goodbye to Matt Smith.

-Nowal Massari