A few more items to whet your appetite for The Snowmen on Boxing Day:

These are the BBC America versions of the trailer – only 30 seconds, but show a few different scenes from the original UK ones…

This video continues the story of Madam Vastra, the Great Investigator:

Another short teaser for the The Snowmen:

Finally, Christmas Carols – with a Sontaran twist!

And last, but not least, here’s the image of the new TARDIS interior!