‘Sherlock’ Season 4, episode 1 live stream, where to watch online, start time: ‘The Six Thatchers’ [SPOILERS]

New Year begins with a brand new episode of "Sherlock" and a shocking case baffles Scotland Yard, but our detective is interested in a trivial detail. Watch "Sherlock" Season 4, episode 1 online via live stream, here (U.K.) and here (U.S.) at 8:30 p.m. GMT and 3:30 p.m. EST. You can watch the episode on BBC One (U.K.)  and PBS (U.S.) on TV.

Warning: This article contains spoilers from "Sherlock" Season 4 episodes. Read to know more.

Season 4 of "Sherlock" pick things up after two years and the premiere episode sees Watson and his wife Mary with their daughter Rosamund.

The episode titled "The Six Thatchers" presents a case that baffles Scotland Yard, meanwhile, Sherlock is interested in the images of late Prime Minister Margaret Thatcher being destroyed by someone.

Also, it has connections with Mary Watson's past.

Official synopsis

"In episode one of this new series, written by Mark Gatiss, Sherlock waits to see where Moriarty will make his posthumous move.

One mysterious case in particular baffles Scotland Yard - but Sherlock is more interested in a seemingly-trivial detail. Why is someone destroying images of the late Prime Minister Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work? Something with its roots deep in Mary Watson's past..." reads the synopsis via Spoiler TV.

Meanwhile, "Sherlock" creators Mark Gatiss and Steven Moffat talked to Newsweek about the new season and the premiere episode's connection to Brexit.

"I've been writing this since last August. Thatcher is a natural substitute for Napoleon. [The story is based on Conan Doyle's 1904 Sherlock story The Adventures of the Six Napoleons.] We wanted to have fun with it and update it.

Steven, you recently criticized the government decision to reveal the salaries of BBC stars paid over £150,000. If, hypothetically, Cumberbatch and Freeman did not want their salaries on Sherlock revealed, would you take the show elsewhere, like Netflix?" Gattis said.

Moffat replied that he would never take the show away from BBC despite the stars getting better offers.

Stay tuned for "Sherlock" Season 4, episode 2 promo and spoilers. Share your views in the section below.