NBC Symphony Orchestra Entered from New York Times review. These radio broadcasts were normally live, but because Carnegie Hall was unavailable at 6:30PM the concert was recorded at 3pm and then broadcast at 6:30PM. The concert was performed before a small (fewer than 600) audience. "Toscanini Concert Goes on Radio Long Way Round." New York Times (1923-Current file): 79. Feb 04 1951. ProQuest. Web. 9 Dec. 2013. symphony orchestra performance radio broadcast 1951-02-03T15:00:00