It’s a mystery… or is it? When the Sherlock TV series first premiered on BBC One and PBS, some fans asked, “Why a contemporary setting?” With the Victorian era Sherlock: The Abominable Bride only a day away, after three successful, modern seasons, some may wonder, “Why a  Victorian Sherlock special?”

Sherlock co-creator, writer, E.P. and cast member, Mark Gatiss, has all the answers. Would you expect anything else from Mycroft Holmes? Watch the video, below, and see for yourself.

The fourth, regular season of Sherlock begins production in the spring, with a likely January, 2017 premiere date.

What do you think? Are you glad the cast and crew could find time for a one-off special episode of the Sherlock TV show, or do you wish they’d just get on with the fourth season?