I've become completely hooked on Sherlock and according to screenrant.com, Sherlock will return to the US on PBS in January 2014. I wish it could air here as early as it does in the UK.
"The Empty Hearse" will air on the BBC sometime later this year, possibly as soon as October 2013. Meanwhile, EW has confirmed that the third season will premiere on PBS in early 2014, maybe by January 2014. - See more at: http://screenrant.com/sherlock-comic-con-2013-season-3-premiere-date-2014/#sthash.GXzoWBVI.dpuf