It has been more than a year since the latest "Sherlock" episode aired and still, reports claim that filming for series four has yet to commence. Fans, while already aware of the very slow pace of the show, are already very antsy to get their "Sherlock" fix. Thankfully, a Christmas special would air this year and details about the self-contained show have already surfaced — all coming from the man of the hour, Steven Moffat himself.

"Sherlock," whose first series aired five years ago in 2010, is a British crime drama television program based on the famous character by Sir Arthur Conan Doyle of the same name. The show, which airs on BBC, is a modern adaptation of the novels created by "Doctor Who" writers, Steven Moffat and Mark Gatiss. It follows the titular Sherlock Holmes with his partner Dr. John Watson as they run a consulting detective agency solving various crimes in contemporary London.

The show has only produced nine episodes in all of its three seasons. However, there is no denying how critically and commercially acclaimed the series has been since its inception. Currently, "Sherlock" holds an average of 80/100 for all of its three seasons on Metacritic and a 98 percent rating on Rotten Tomatoes.

Last year, in July, it was announced that despite the fourth season not having a release date just yet, a special would be aired on Christmas 2015 and Gatiss has spilled details about the upcoming special.

In an interview with Radio Times, Gatiss explained that while the special would be set in Victorian England, the show would be quintessential "Sherlock."

"It's not suddenly going to be a different show. It's essentially our Sherlock as if we'd always done it set in 1895. It has the same sensibility. The language is obviously slightly different but we wanted it to feel as funny and as vivid and as getable as our modern-day one. Otherwise it would be a sort of dusty period piece which is not what we are interested in."