‘Sherlock' Trailer To Air After ‘Great British Bake Off' Final

'Sherlock' Bosses Delight Fans With #221Back Trailer

‘Sherlock’ fans are in for a treat this evening, when a trailer for the upcoming Christmas special will air on BBC1.

The show’s bosses have unveiled an 11-second teaser trailer for the episode, promising that an extended version will be screened during the ‘Great British Bake Off’ final.

While the short teaser gives precious little away, that hasn’t stopped fans from speculating about what the episode will entail, and sharing their delight on Twitter:

The ‘Sherlock’ Christmas episode will be a standalone special, set in Victorian Britain, with a full, new series to follow in 2016.

Fans have already been given a glimpse at Benedict Cumberbatch and Martin Freeman in character, though it’s hoped that the new trailer will reveal details of the episode's plot.

‘Sherlock’ showrunner Steven Moffat has previously teased fans with hints about the show, revealing that things are set to take a “darker” turn.

See the teaser trailer above, ahead of the full trailer at 9pm tonight (Wednesday 7 October).

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