I was watching this promo film earlier:
https://www.youtube.com/watch?v=dppZxBnNOl0 (the title sayes wrong 1942; since United Nations Bulding was complete in October of 1952 and it seems to be summer, I can't be eariler then 1953).
At 9:42 I spotted some studio cameras - 30 Rockefeller Center.
For the ones curios, before the cameras, there are images with the radio side.