Learn more: http://to.pbs.org/2foyetD | #SherlockPBS
See a preview for the Sherlock Season 4 finale, “The Final Problem,” premiering Sunday, January 15th, 2017 at a special time, 7/6c, on MASTERPIECE on PBS. #SherlockPBS
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Season four begins with the mercurial Sherlock Holmes (Benedict Cumberbatch), back once more on British soil as Doctor Watson (Martin Freeman) and his wife Mary (Amanda Abbington) prepare for their biggest challenge yet: becoming parents.
