Sherlock has a history of rewarding the dedicated viewer with references, easter eggs, hints and in-jokes, and The Six Thatchers was no exception.

Season four got off to a bang, driving a wedge between John and Sherlock and delivering a shocking ending that will no doubt continue to be felt across the rest of the series.

But in among all the excitement, did you manage to keep up your observational skills, like the great man himself? Did you spot these clues and references in last night’s Sherlock?

An article I’m quite proud of – it’s my first for the Metro! (Perhaps somewhat amusingly, though, the above text I’ve copied isn’t actually written by me. Whoops.)

Regardless, I think this is pretty cool.

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