30 Rockefeller Plaza, also known as 30 Rock, is a skyscraper located on Rockefeller Plaza in Midtown Manhattan, New York City, New York, built in 1933. It served as the headquarters of RCA from 1933 to 1988 and General Electric from 1988 to 2015, and the building was renamed the Comcast Building in 2015. In 1996, NBC bought 1,600,000 square feet in the building and turned it into NBC Studios, housing NBC Studios, NBC News, MSNBC, and WNBC.