Doctor Who Bar will officially open at 5:30 pm on the twenty-third, half an hour before the premier of Doctor Who Series 6 to talk about what may happen in the season opener.
You can join them earlier that day at 4 pm to watch Matt Smith's first Christmas special, which was A Christmas Carol. Later being able to join them as I said above to discuss the opening episode for the double part season.
Also remember the live tweet session on BBC 3 for the repeat of The Impossible Astronaut which is still yet to be confirmed what time that will be. Check out there site for the opening here.