Okay, I'm going to be brave here and try to start a new topic.
So.... I'm working my way through another viewing of all the episodes of Sherlock, and occasionally noticing little bits I don't understand -- either because I'm not British, or haven't read enough ACD, or not attentive enough, or whatever.
I know I could probably find the answers to most of these questions on Google but I thought it would be more fun to see if anyone on this forum would like to provide some answers.
Most of these are questions of fact, but when they're not, feel free to theorize! And to add your own questions!