"Come Fly With A Dalek & The Doctor"

To promote the "Doctor Who" Christmas Special and BBC's new mockumentary, "Come Fly With Me" with "Little Britain" stars David Walliams and Matt Lucas, the BBC have been releasing trailers with both appearing in them. The one that has been on tv most is the "Come Fly With Me" trailer with a Dalek in it.
Here's the link to the YouTube trailer: http://www.youtube.com/watch?v=Bq3gV74zNKg
Also, here's the link to the tv trailer for the upcoming "Doctor Who" 2010 Christmas Special: http://www.youtube.com/watch?v=9_KJG5w91cE