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Brooklyn Nine-Nine is an American police procedural comedy television series that aired on Fox, later airing on NBC from September 17, 2013 to September 16, 2021, after eight seasons and 153 episodes. It was created by Dan Goor and Michael Schur.

The series revolves around Jake Peralta (Andy Samberg), a New York City Police Department (NYPD) detective in Brooklyn's 99th Precinct, who often comes into conflict with his commanding officer, the serious and stern Captain Raymond Holt (Andre Braugher). The rest of the cast features Stephanie Beatriz as Rosa Diaz, Terry Crews as Terry Jeffords, Melissa Fumero as Amy Santiago, Joe Lo Truglio as Charles Boyle, Chelsea Peretti as Gina Linetti, Dirk Blocker as Michael Hitchcock, and Joel McKinnon Miller as Norm Scully.

Produced as a single-camera comedy, Fox originally ordered 13 episodes for its first season, eventually expanding it to 22 episodes. Brooklyn Nine-Nine premiered on September 17, 2013. On May 10, 2018, Fox cancelled the series after five seasons. The following day, NBC picked up the series for a sixth season; it premiered on NBC on January 10, 2019. The seventh season premiered in February 2020. The 10-episode eighth and finalseason premiered on August 12, 2021.

The series has been acclaimed by critics. The first season won the Golden Globe Award for Best Television Series – Musical or Comedy, and on the same night, Samberg won the Golden Globe Award for Best Actor – Television Series Musical or Comedy. Braugher has been nominated four times for the Primetime Emmy Award for Outstanding Supporting Actor in a Comedy Series and has twice won the Critics' Choice Television Award for Best Supporting Actor in a Comedy Series. The series has also received particular praise for its portrayal of serious issues, while retaining a sense of humor. For its portrayal of LGBTQ+ people, the series won a GLAAD Media Award for Outstanding Comedy Series.