Just going through some old stuff, and found this Youtube link. I don't think I've ever posted it before, but even if I have, here y'go again. It is, after all, a glorious and rather clever mashup of two of my favourite fandoms, and hey, Benedict Cumberbatch!
(Dear Autocorrect: yes, "fandom" is a real word. Please stop changing it to "fantom". Grr. Me.)