what is its full form?
National Broadcasting Company.
NBC
The National Broadcasting Company (NBC) is an American English-language commercial terrestrial radio and television network owned by NBCUniversal, a subsidiary of Comcast. 
what's the genre of parks and recreation (season 1)? Comedy. which are the main characters? Amy Poehler, Rashida Jones, Paul Schneider, Aziz Ansari, Nick Offerman, and Aubrey Plaza. who is the script writer? Greg Daniels and Michael Schur. how was its review? Early test screenings were poor, and many critics and industry observers were skeptical about the show's chances of success. The first season received generally mixed reviews. which channel broadcasted it? NBC.
wiki:25654521
NBC [SEP] Introduction
The National Broadcasting Company (NBC) is an American English-language commercial terrestrial radio and television network owned by NBCUniversal, a subsidiary of Comcast. The network is headquartered at 30 Rockefeller Plaza in New York City, with additional major offices near Los Angeles (at 10 Universal City Plaza), Chicago (at the NBC Tower), and Philadelphia (at the Comcast Technology Center). NBC is one of the Big Three television networks, and is sometimes referred to as the "Peacock Network", in reference to its stylized peacock logo, introduced in 1956 to promote the company's innovations in early color broadcasting; it became the network's official emblem in 1979.