Sharon Horgan

So THAT’S What Happened To Baby Jane!

Yep, you read that picture caption correctly. The Joan Crawford on the right there is indeed Mark Gatiss – Mycroft Holmes from Sherlock, among a great many other things.

WATCH: Two Doctors In One Trailer

After the fun and games of the musical festive trailer for BBC One, there has now been a second trailer released, showing clips from some of the dramas which will be airing over the next few weeks.