[youtube=http://www.youtube.com/watch?v=qtGf6RvjWE4&w=560&h=315] Not even a week after the end of Sherlock’s two-year hiatus, season three’s second episode, “The Sign of Three”, hit televisions in the UK. On the whole, it has enjoyed a positive reception by fans who are fortunate enough to have seen it, thanks mostly to its gratuitous fan …