Sherlock is just an incredible series. It has a 9.1 rating for a reason. There have been so many shows and movies based off Sherlock Holmes but I can say with confidence that this is the best of them. The writing and acting is would makes this show so special. Every single season is just as good as the others. Benedict Cumberbatch was born to play this role...he is Sherlock Holmes. Martin Freeman also stars as Dr. John Watson and those two lead just an overall great cast. This show won so many awards including 9 Emmys over the course of its run. If you haven't seen this incredible series yet then do yourself a favor and go watch it as soon as possible!