This article originally appeared on the BBC News website.
It has been amended to clarify that the BBC has not officially confirmed that this is the first time the company has used a cold room to house a live broadcast.
The BBC has said it will broadcast the episode on March 22, but did not give a time.
It will be broadcast on BBC One and BBC Two, but no date has yet been confirmed.
“We will then be offering a live programme from the studio on March 10 to coincide with the special on BBC Two.” “
BBC News said the new episode will be recorded on March 9. “
We will then be offering a live programme from the studio on March 10 to coincide with the special on BBC Two.”
BBC News said the new episode will be recorded on March 9.
It will be produced in a “cold room” environment, which the corporation said “remains one of the most advanced and innovative in the business”.
The BBC has been experimenting with a range of different cold rooms in recent years, including in the wake of the Grenfell Tower tragedy.
The company has been using the facilities since the early 2000s, when it hosted a live TV show in the UK.
The first time that the cold room was used to house live news was in 2014, when a BBC Four documentary aired in the US.
In a statement about the new special, the BBC said: The special will see Sherlock Holmes discover the identity of a serial killer and find out what happened to the body of his sister, Mary.
It is a very different Sherlock Holmes to what you are used to seeing on the show.
“As part of the show, he will discover that the killer is a former detective and that the police were unable to arrest him.
Sherlock Holmes is known to be a great detective, but has a cold case on his hands.
This story is part of BBC Four’s Sherlock: Live at London’s Old Vic documentary series, which is broadcast on March 16.