In this modernized version of the Conan Doyle characters, using his detective plots, Sherlock Holmes lives in early 21st century London and acts more cocky towards Scotland Yard's detective inspector Lestrade because he's actually less confident. Doctor Watson is now a fairly young veteran of the Afghan war, less adoring and more active.
Did You Know?
In season 2, the first episode the scandal in Belgravia, when Sherlock opens Irene's locker which contains the mobile, Sherlock says "Vatican cameos" which is a codeword used in World War ll, when the non-military man enters in a military base-armed. So this codeword was shouted so that everyone would duck immediately. See more
All lives end; all hearts are broken. Caring is not an advantage, Sherlock.
In the American (PBS Masterpiece Mystery) broadcasts of this series, certain letters in the closing titles are highlighted red. These letters spell out a word that somehow relates to the episode. These highlighted letters don't occur in the closing credits of the original airings of the series (on BBC) though. See more