The special is being produced in tribute to director James Burrows, who was behind many of the world’s favourite American sitcoms and is is scheduled to be broadcast on 21 February in the United States.
It is likely to feature sketches and cameos from the Friends cast, as well as stars of various other US shows, potentially including Cheers, Frasier and The Bob Newhart Show.
NBC entertainment chairman Robert Greenblatt suggested that despite the cast signing up for the project, the six Friends may not appear together.
"I'm hoping all six will be in same room at the same time," he told reporters. But he added: "I'm not sure we can logistically can pull it off."
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The cast - fresh-faced when the show started in the early 90s - now have an average age of 49 and Emma, the on-screen baby of Ross and Rachel, would be set to turn 14 this year.
Are you excited about the prospect of a Friends reunion? We know we are!