I think it was you that was asking a few weeks ago if anyone knew when the new Sherlock was starting. I found this on the air date website that I look at.
Sherlock, Season 3 - BBC One 01 January 2014 at
US air date is confirmed as the 19th Jan on PBS. BBC don’t confirm air dates until 2 weeks before broadcast… However, one of the Sherlock producers has tweeted saying 1st Jan is correct. Still not officially confirmed, but i’d be amazed if it isn’t New Years Day…