what is its full form?
National Broadcasting Company
NBC
The National Broadcasting Company (NBC) 
when does the new season of friends air UNANSWERABLE what is friends? It is an American television sitcom. what does sitcom mean? UNANSWERABLE who are the characters? Rachel Green,  Monica Geller, Joey Tribbiani,  Ross Geller what are their real life names? Jennifer Aniston, Courteney Cox, Matt LeBlanc, David Schwimmer has the show won any award? Yes, Primetime Emmy Award for Outstanding Comedy Series,  American Comedy Award, one GLAAD Media Award when did the first episode air? September 22, 1994 on which channel? NBC
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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.