Rehearsal: The Telephone Hour

In 1947, a 27-minute, black-and-white short subject entitled Rehearsal: The Telephone Hour, was released to theaters. Originating in NBC's Studio 6B at 30 Rockefeller Plaza, the film featured, in addition to Voorhees and the orchestra, operatic bass Ezio Pinza and opera mezzo-soprano Blanche Thebom singing arias.