Huffington Post:
The "Doctor Who" Christmas Special, "The Snowmen," is right around the corner, but you don't have to wait until December 25 to see what's in store for the Doctor and his new companion.

In the trailer below, Matt Smith and "Doctor Who" newcomer Jenna-Louise Coleman present a first look at the 2012 Christmas special. The episode is written by executive producer Steven Moffat and features Coleman's debut as the Doctor's new companion. Is she the same character from the Season 7 premiere? Hmm ...

The Christmas special also features the return of Silurian Madame Vastra (Neve McIntosh) and her cohort Jenny (Catrin Stewart).

"Doctor Who's" "The Snowmen" airs Tuesday, December 25 at 9 p.m. ET on BBC America. (Dr Who, TV)