Radio City (also known as Radio City Music Hall) is an entertainment venue located in Rockefeller Center in New York City.
The Ghostbusters arrived late to the premiere of the movie based on them because they ran into four Full Torso Vapors on the way. The Ghostbusters and Slimer proceeded into the theater to watch the movie. Some time later, the premiere of "Horror House" also happened at the theater. Artie Grendel hired the Ghostbusters to make an appearance outside for the movie's publicity.