Shame that Brother Mycroft only got a brief mention.

I was pleased, first seeing this, that Mycroft got a brief mention in passing. But it's rather a shame that the scriptwriters couldn't have found a way to work him into the story somehow.

I like the character of Mycroft because, if you read between the Canon's lines, you can see a rather nice relationship between the two. Who was the only person whom Sherlock ever asked for help and advice on cases? (He told Watson in The Greek Interpreter that he often popped in on Mycroft for help on "some little problem.") Who was the only person Holmes admitted had greater intelligence than himself? Who was the only person Holmes trusted with his secret during the Great Hiatus? And (aside from government issues), who was the only person who could make Mycroft alter his habits, in The Greek Interpreter and The Final Problem? There it is...maybe not all that demonstrative, but genuinely affectionate.

It might've been kind of neat to show that although there was closeness between the brothers in their youth, Sherlock was still a kid who wasn't above twitting his older brother.

Or, perhaps some dialogue along these lines:

Holmes: You have to understand how it is with us, Watson...I alternate rather regularly between worshipping the ground my brother walks on and wanting to kill him in the most painful way possible.

Watson: There's no need to say another word, dear chap. I *have* an older brother.