The popular sitcom “30 Rock” gave audiences in the U.S. a satirical sneak peek at what goes on inside just one of the massive structures in the 22 acres (89,000 square meters) that make upRockefeller Center. The address 30 Rockefeller Center is where the NBC studios are housed and where the comedy show “Saturday Night Live” is filmed. Besides the studios, the Rockefeller Center complex is a news media, publishing, and entertainment icon declared a National Historic Landmark in 1987. It features Radio City Music Hall, the original Time-Life Building, “Today Show” studios, the Simon & Schuster Building, and the initial RKO Pictures (renamed the GE Building) and McGraw-Hill buildings.