Additionally, there are 4 special episodes:
| Series | Year(s) Aired | Number of Episodes | Notable Episode Titles | |--------|--------------|--------------------|------------------------| | 1 | 2010 | 3 | "A Study in Pink," "The Blind Banker," "The Great Game" | | 2 | 2012 | 3 | "A Scandal in Belgravia," "The Hounds of Baskerville," "The Reichenbach Fall" | | 3 | 2014 | 3 | "The Empty Hearse," "The Sign of Three," "His Last Vow" | | Special| 2016 | 1 | "The Abominable Bride" (Victorian-era special) | | 4 | 2017 | 3 | "The Six Thatchers," "The Lying Detective," "The Final Problem" | how many episodes are in sherlock
So, in total, there are $$4 \times 3 + 1 = 13$$ episodes, if you include that first special as part of that first season then $$4 \times 3 = 12$$. Additionally, there are 4 special episodes: | Series
The show follows a consistent structure of three episodes per series, with the exception of the 2016 Victorian special. It is considered canon within the show’s narrative
Aired on January 1, 2016, this standalone episode is set in the Victorian period (the original Arthur Conan Doyle era) rather than the modern-day setting of the main series. It is considered canon within the show’s narrative and is included in the official episode count. However, some streaming platforms list it separately from Series 4.
12 Total including the special: 13