At the end of the colossal and brilliant Great British Bake Off final on BBC1 last night (what must our US readers think? The country’s top-rating show is a cooking contest about baking cakes?), the channel sneaked in a new trailer for the upcoming one-off Victorian episode of Sherlock, to be screened at Christmas. It wasn’t just a little tease or just some fancy titles. Oh no, this was a proper trailer that lasted a full minute and a half and contained proper snippets of action. It looked fantastic, and it’s after the jump for your perusal.