An Optimistic Advent Calendar - Day 12

Ding Dong Merrily on High! Welcome to day 12 of 'An Optimistic Advent Calendar'. From now until the 24th, I'll be bringing you a daily dose of Christmas cheer by sharing all sorts of festive makes and bakes, things to see and do and of course, lots of pretty pictures - all served up with an extra handful of seasonal sparkle. So pop back tomorrow for another look.

If you've been keeping up with The Optimist's advent calendar, you'll already know that there's some cracking TV coming up this Yule-tide. Arguably two of the biggest television events of the decade, will be happening between now and New Years, the regeneration of the eleventh Doctor in Doctor Who and the return of the consulting Detective in Sherlock, and one impressive editor has made the dreams of a million fans come true by imaging a meeting between the two great minds in an excitement inducing mini-episode. Take a look, but beware, once you watch it, you'll never be truly happy until the BBC makes a real one.

And if that's put you in the mood, you can have another serving of Sherls and Dockers with the real trailers, below. Remember, if you go to the Sherlock website, you can watch the interactive trailer which has some very cool hidden content.