The pilot episode of Parks and Recreation aired in 2009.
NBC first broadcast the episode in the United States on April 9, 2009. It introduced Leslie Knope, an relentlessly optimistic Pawnee, Indiana, parks official played by Amy Poehler, as she tried to transform an abandoned construction pit into a public park.
The series used a mockumentary format, with a documentary crew observing local government employees. That approach invited comparisons with The Office, but Parks and Recreation developed its own setting, ensemble, and optimistic civic-comedy tone. The pilot also established the show’s central tension between Leslie’s enthusiasm and the bureaucracy surrounding her.
The first season had only six episodes, a short run that reflected the show’s uncertain beginning. Later seasons expanded the world of Pawnee and introduced characters such as Ben Wyatt, Chris Traeger, and April Ludgate in deeper roles. The year 2009 is the key answer; the episode’s exact broadcast date is the more specific detail.