I thought there should be a thread on the official website's holiday tradition. The Doctor Who Adventure Calendar is a yearly feature where each day of December they reveal a new goodie for fans, such as an image, a video, or a game. Some relate to the upcoming Christmas special, but not all. I'll start us off with the first entry on the calendar.
What it is:
A downloadable PDF of instructions for a game called "Doctor in the House". Basically it involves you trying to slip any of the given Doctor Who quotes into ordinary conversation, and earning points if no one gets it. Not a very structured game, but it sounds amusing enough. They had this game on the calendar last year, though this time the quote list is updated to include quotes from Series 5.
Available for non-UK fans?