"Live from New York, it's Saturday Night!" is a famous phrase typically featured on the American sketch comedy show Saturday Night Live, which runs on the NBC broadcast network. It is generally used as a way to end a cold opening sketch and lead into the opening titles/montage and cast introductions for the program.
During the show's first season, the show was known simply as NBC's Saturday Night, due to the existence of an ABC show titled Saturday Night Live with Howard Cosell. This is how the phrase received its wording. The phrase was kept intact even after ABC's SNL was canceled and NBC's Saturday Night adopted the SNL name for itself.
The phrase is typically spoken by a host, cast member(s), and/or musical guest, and has been used in every season except one (the 1981-1982 season, the first full season with Dick Ebersol as producer). It was first said live on air by Chevy Chase, on SNL's first show on October 11, 1975. For all but two of the first season's 24 episodes, Chase delivered the phrase after a pratfall of some kind. Even when the show is not aired on a Saturday—such as the Saturday Night Live Weekend Update Thursday specials aired from 2008 to 2012—the traditional line is used.
The person delivering the phrase usually breaks character and the fourth wall, in that the phrase is normally not spoken to other cast members as part of the spoken dialogue in the opening sketch. Instead, the person suddenly turns and delivers it directly to the audience and the camera with a full-throated shout.
The line has occasionally been given to a non-host/non-cast member for cameo purposes. This could be for stars like Brad Pitt and Dwayne "The Rock" Johnson, or for more unusual celebrities like Monica Lewinsky, Who Wants to Be a Millionaire winner John Carpenter, WWE chairman Vince McMahon (on March 18, 2000), Carolyn Kepcher (on April 3, 2004), and Al Sharpton (on November 2, 2013).