Raymond Hood, Rockefeller Center's lead architect, came up with the idea to negotiate with the Radio Corporation of America (RCA) and its subsidiaries, National Broadcasting Company (NBC) and Radio-Keith-Orpheum (RKO), to build a mass media entertainment complex on the site. By May 1930, RCA and its affiliates had made an agreement with Rockefeller Center managers. RCA would lease of studio space; get naming rights to the western part of the development; and develop four theaters, at a cost of $4.25 million per year. A skyscraper at 30 Rockefeller Plaza's current site was first proposed in the March 1930 version of the complex's blueprint, and the current dimensions of the tower were finalized in March 1931. The skyscraper would be named for RCA as part of the agreement.