Even though the first teaser of the show's new season came out in July, this latest one gave us that one piece of new information that obviously sent fans into a frenzy - the premiere date, which turned out to be earlier than anticipated
Sherlock co-creator Mark Gatiss released the first picture from the sets of the series, which shows Benedict Cumberbatch shooting for the fourth season. This was followed by Marvel releasing the first teaser of sorcerer supreme Doctor Strange
The third season of Benedict Cumberbatch's Sherlock became UK's most watched drama series since 2001
Actor Benedict Cumberbatch is engaged to theatre director girlfriend Sophie Hunter, according to a newspaper announcement