Telemystery News: Sherlock To Film Special Episode in January 2015, Return with Three More Episodes Later in the Year

BBC One has announced that Sherlock will return with a special episode followed by three additional episodes for the fourth season of the series.

"A special, plus a new series of three episodes — it's a record-breaking run!" says co-creator Steven Moffat. "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 …"

The Special episode is expected to begin filming in January 2015 with the three regular episodes following later in the year.