So - after the flurry of the Children in Need 2011 Special (suspenders!) and the trailer for the Christmas Special, now Moffat hands us four mini-sodes on a silver platter. I know not everyone follows doctorwho, so have links:

bad night.
good night.
first night.
last night.
You might want to keep a handkerchief or two at hand.

Also, re: ( the christmas special; spoilers )