A Scandal in Belgravia - S2-E1
Other mistake: While Sherlock sits reading the paper he gets a text alert from (we assume) Irene Adler, and John notes that he had heard this alert fifty seven times. At the end of the episode, when Sherlock is looking through the texts that she sent to him, there are not that many texts from Miss Adler.
Suggested correction: There are 17 texts shown, but nothing indicates that that’s all he ever got. Probably his phone only displays the last few texts.




