Sherlock mini episode to air on Christmas Day via BBC Red Button. FYI: It's called "Many Happy Returns" too and is said to include John but not Sherlock.LOLOLOL "@vereentjoeng: Cumbercake: Sherlock jump out of a cake #poorJohn lol #BenedictCumberbatch #SherlockLives pic.twitter.com/D5NJGfZTpr"
— Smauglock Holmes (@catpat23) December 9, 2013
I don't have all the info for the mini ep, but allegedly non-BBC subscribers can access Red Button. (Yes, I Tweeted @anglophenia, so hopefully we'll know soon. Fingers crossed!)
And the BBC has an interactive trailer for Sherlock now! Be warned: The Daily Mail has an article about the trailer -- which includes spoilers and spoiler pics!
ETA 29-Dec-13: Link for Many Happy Returns here.