Benedict Cumberbatch
Actor Benedict Cumberbatch smiles as he arrives at the 2014 Vanity Fair Oscars Party in West Hollywood, California March 3, 2014. Reuters/Danny Moloshok

On Monday night, BBC's "Sherlock" scored three big wins at the 66th Primetime Emmy Awards. Benedict Cumberbatch [Sherlock] won the Outstanding Lead Actor in a Miniseries or a Movie for "Sherlock -- His Last Vow," while Martin Freeman [Dr Watson] won the Outstanding Supporting Actor in a Miniseries or a Movie for the same episode.

"Sherlock -- His Last Vow," which brought back Moriarty in the final moments, is the last episode of "Sherlock" Season 3. And for writing this episode, Steven Moffat, co-creator of "Sherlock," took home the golden award for Outstanding Writing for a Mini-Series or Movie.

After his first Emmy win, Moffat spilled some details about Season 4, without revealing anything. He said that they have "a plan to top" "Sherlock" Season 3.

"I do think our plan is devastating," Moffat said to the media, as quoted by Variety. "We practically reduced our cast to tears by revealing the plan." He said he and his "Sherlock" co-creator Mark Gatiss are "excited" about what they have got for the upcoming season.

"Probably more excited than we've ever been about 'Sherlock,' and we're a couple of fan-boys, so honestly, I think we can," Gatiss said, as quoted by Zap2it.

He confirmed reports that they are going to start shooting the one-off special episode in January 2015. And later in 2015, "we're doing three more 'Sherlocks'" Moffat said. According to media reports, the production of "Sherlock" Season 4 was originally scheduled to begin this autumn.

Speaking about a date for Season 4, Moffat joked, "I wondered how long that one would take." He said that it is for BBC to decide when it is time for "Sherlock" to say goodbye. He called himself a "loyal servant" of BBC. "I simply do what they ask me," Moffat said.

The new season of "Sherlock" promises to take Sherlock and Dr Watson into "deeper and darker water than ever before."

This year, "Sherlock" has won seven Emmy awards, the highest for any show. At the Creative Arts Emmy, "Sherlock" bagged the Best Cinematography for a Miniseries or Movie [Neville Kidd]; Best Music Composition for a Miniseries, Movie, Or Dramatic Special [David Arnold and Michael Price]; Best Single-Camera Editing for a Miniseries or Movie [Yan Miles]; Best Sound Editing for a Miniseries, Movie, or Dramatic Special [Doug Sinclair, Stuart McCowan, Jon Joyce, Paul McFadden, William Everett, and Sue Harding].