Sherlock Season 4 will premiere on the BBC January 1, 2017, with the first new episode since the 2015 Christmas Special.  The season premiere, entitled “The Six Thatchers”, is almost certainly a play on the original Conan Doyle story “The Six Napoleons” and will find Dr. Watson and his wife preparing for the arrival of their first child (and undoubtedly Sherlock trying to find some way to cope with that).  The fourth season will, as its predecessors, have three feature-length episodes, and will be available on Blu Ray January 24, 2017.  It’s so long between visits, but it’s always worth catching up with Holmes and Watson again.