30 Rockefeller Plaza is an American Art Deco skyscraper that forms the centerpiece of Rockefeller Center in Midtown Manhattan, New York City. Formerly called the RCA Building from 1933 to 1988, and later the GE Building from 1988 to 2015, it was renamed the Comcast Building on July 1, 2015, following the transfer of ownership to new corporate owner Comcast. Its name is often shortened to 30 Rock. The building is most famous for housing the NBC television network headquarters.