Seinfeld is an American television sitcom that originally aired on NBC from July 5, 1989, to May 14, 1998, lasting nine seasons, and is now in syndication.

Many of its catch phrases have entered into the popular culture lexicon. The show led the Arthur Nielsen Media Research Ratings in its sixth and ninth seasons and finished among the top two (along with NBC's ER) every year from 1994 to 1998.[1] In 2002, TV Guide named Seinfeld as the greatest television program of all time.[2] In 2008, Entertainment Weekly ranked Seinfeld as the third best show of the last 25 years, behind The Sopranos and The Simpsons.

The eponymous series was created by Larry David and Jerry Seinfeld, with the latter starring as a fictionalized version of himself. Set predominantly in an apartment block on New York City's Upper West Side (but shot mainly in Los Angeles, California), the show features a host of Jerry's friends and acquaintances, who include George Costanza, Elaine Benes and Cosmo Kramer. Seinfeld was produced by Castle Rock Entertainment and distributed in association with Columbia Pictures Television and Columbia TriStar Television. Sony Pictures Television has distributed the series since 2002. It was largely co-written by David and Seinfeld with input from numerous script writers, including Larry Charles, Peter Mehlman, Gregg Kavet, Andy Robin, Carol Leifer, David Mandel, Jeff Schaffer, Steve Koren, Jennifer Crittenden, Tom Gammill, Max Pross, Charlie Rubin, Alec Berg, and Spike Feresten.