Question: When did the Abominable Bride air?
Sentence (from "Sherlock (TV series)"): "Sherlock" is a co-production of the British network BBC and the American station WGBH Boston for its "Masterpiece" anthology series on PBS, along with Hartswood Films, with Moffat, Gatiss, Sue Vertue and Rebecca Eaton serving as executive producers.
Relevant evidence: No