This year's Doctor Who contributions to Children in Need has been announced, and it's all about the Christmas Special. We're getting both a prequel to the episode and
an exclusive trailer.
For those in the UK, you can see both when Children in Need airs this Friday the 16th on BBC One. They will be online
Wibbly wobbly, linky dinky
ETA: While this isn't related to CiN, it's related to the Christmas Special, so I'll just put it here. A promotional image of The Doctor from the episode:
for the image in its original, crazy rez size.