The cast of “Downton Abbey” will celebrate the “global phenomenon’s final chapter” during a primetime special tonight.

“Downton Abbey Celebrates The Grand Finale” airs at 9 p.m. Wednesday, Sept. 10, on NBC and streams Sept. 11 on Peacock.

LIVE STREAM : Fans can watch NBC without cable on DirecTV and fuboTV , both of which offer a five-day free trial; and SlingTV.

“The one-hour telecast features special conversations with the beloved cast of the highly anticipated third and final film as they reunite at London’s famed Savoy Hotel to exclusively share personal memories and never-before-told secrets from the franchise’s 15-year journey,” NBC said in a news release.

Cast members appearing will include Hugh Bonneville, Laura Carmichael, Jim Carter, Raquel Cassidy, Michelle Dockery, K

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