ALF is an American television sitcom that aired on NBC from September 22, 1986, to March 24, 1990.
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The National Broadcasting Company (NBC) is an American commercial broadcast television and radio network serving as the flagship property of the NBC Entertainment division of NBCUniversal, a subsidiary of Comcast. The headquarters of NBC is in New York City at the Comcast Building. NBC also has offices in Chicago at the NBC Tower.
30 Rockefeller Plaza, the headquarters of NBC at Rockefeller Center in New York City