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Two of the mysteries surrounding the much-anticipated “Sherlock” special have been solved: its airdate and its title.

BBC One announced via Twitter on Saturday that “Sherlock: The Abominable Bride” will bow on Jan. 1, 2016 in both the U.S. and the U.K. This is the first time a new chapter of “Sherlock” will air in both countries on the same day, after years of American fans complaining about the delay.

It was also announced Saturday that “Sherlock’s” fourth season will begin production in the spring, with creators Steven Moffat and Mark Gatiss currently writing the new episodes.

The beloved duo of Benedict Cumberbatch and Martin Freeman return to play intrepid investigators Sherlock and Watson, based on the works of Sir Arthur Conan Doyle. The 90-minute special finds the pair in 1890s London, with Amanda Abbington, Rupert Graves and Una Stubbs also starring.

Moffat previously confirmed that the upcoming special will stand alone from the highly anticipated fourth season.

“The special is its own thing,” Moffat said. “We wouldn’t have done the story we’re doing, and the way we’re doing it, if we didn’t have this special. It’s not part of the run of three episodes.”

“Sherlock” is produced by Hartswood Films for BBC One and co-produced by Masterpiece. Beryl and Sue Vertue, Gatiss, Moffat and Rebecca Eaton executive produce.

“The Abominable Bride” will bow at 9 p.m. on Friday, Jan. 1, 2016 on “Masterpiece Mystery!” on PBS and online at pbs.org/masterpiece.

See the trailer for the special below.