BBC One's hit series "Sherlock" is officially coming back. Benedict Cumberbatch and Martin Freeman set to return for a 2015 special, followed by a fourth season of three new episodes (likely to air in early 2016).
Shooting on the one-off special will begin in January 2015, with the subsequent fourth season to shoot later next year.
In an official statement, co-creator, writer and executive producer Steven Moffat says: "A special, plus a new series of three episodes - it's a record-breaking run. Of course, it's far too early to say what's coming, but we're reasonably confident that the very next thing to happen to Sherlock and John, is the very last thing you'd expect."
Fellow co-creator, writer and executive producer Mark Gatiss adds: "Series Four! At last! It's always special to return to Sherlock but this time it's even more special as we're doing... a Special. Not only THAT, we'll then be shooting three more episodes which will take Sherlock and John Watson into deeper and darker water than ever before. The whole Sherlock team are terrifically excited to return for four new adventures. "
Executive producer Sue Vertue says: "Its taken a little while to get the dates sorted as none of the boys are exactly sitting back twiddling their thumbs but there was unanimous goodwill to make this work, so we're thrilled that 221b is going to be inhabited again."
The news was announced earlier today via the network's Twitter account.