Mr. Sarnoff spared no expense in creating the NBC Symphony. Artur Rodziński, a noted orchestra builder and musical task master in his own right, was hired to mold and train the new orchestra especially for Toscanini. Prominent musicians from major orchestras around the country were recruited for the orchestra. Conductor Pierre Monteux was engaged to help in the effort as well. In addition to creating prestige for the network, there has been speculation that one of the reasons NBC created the orchestra was to deflect a Congressional inquiry into broadcasting standards.
The orchestra's first broadcast concert aired from NBC's Studio 8H on November 13, 1937 under the direction of Pierre Monteux. Toscanini conducted 10 concerts that first season making his NBC debut on December 25, 1937. In addition to weekly broadcasts on the NBC Red and Blue networks, the NBC Symphony Orchestra made many recordings for RCA Victor of symphonies, choral music and operas. Televised concerts began in March 1948 and continued until March 1952. In the fall of 1950, NBC converted Studio 8H into a television studio and moved the broadcast concerts to Carnegie Hall, where many of the orchestra's recording sessions and special concerts had already taken place.
Toscanini led the NBC Symphony for 17 years. Under his direction the orchestra toured South America in 1940 and the USA in 1950. It also performed with a veritable who's who of the world's top conductors, including Monteux, Ernest Ansermet, Erich Kleiber, Erich Leinsdorf, Charles Munch, Fritz Reiner, George Szell, Bruno Walter, the young Lorin Maazel and the promising young Italian conductor Guido Cantelli.
Leopold Stokowski served as principal conductor from 1941-1942 during a contract dispute between Toscanini and NBC. During this time Toscanini continued to lead the orchestra in a series of hugely successful public benefit concerts for war relief. Upon Toscanini's retirement in the spring of 1954, NBC disbanded the orchestra, much to Toscanini's distress. The final broadcast concert (recorded in both mono and stereo) took place at Carnegie Hall on April 4, 1954, and the final recording sessions were in early June 1954.
For nearly a decade, the Symphony of the Air performed many concerts led by Leopold Stokowski, the orchestra's music director from 1955. The orchestra recorded widely (on Columbia, RCA, United Artists and Vanguard) under leading conductors, including Bernstein, Monteux, Reiner, Stokowski, Walter, Kyrill Kondrashin, Thomas Beecham, and Josef Krips. The orchestra disbanded in 1963.
RCA released the orchestra's recordings on its flagship Red Seal label on the then standard 78-rpm records. In 1950, a 1945 recording of Ferde Grofé's Grand Canyon Suite became the NBC Symphony's first LP release (LM-1004). A mainstay of RCA's catalog through the 1950's, many of the NBC Symphony's recordings were later reissued on the lower priced RCA Victrola label, where they remained until the demise of the LP. In the 1980's RCA began issuing digitally remastered recordings of the orchestra, including a complete issue of all Toscanini's RCA recordings in 1990 on CD and audio cassette. Later advances in digital technology has led RCA (now Sony/BMG Classics) to further enhance the sound of the magnetic tapes for additional reissues. RCA has only reissued recordings that were personally approved by Toscanini, however other labels have released discs taken from off-the-air recordings of NBC broadcast concerts.
The complete series of ten NBC Symphony telecasts has twice been issued on home video: On VHS and Laser Disc by RCA in 1990 and on DVD by Testament in 2006.
One of the NBC Symphony Orchestra's most ambitious projects was the recording of the 13-hour musical score for NBC Television's 1952 series Victory at Sea. Robert Russell Bennett conducted the orchestra in the arrangements he had done of Richard Rodgers' musical themes for the 26 documentary programs. The series is currently available on DVD. (In the early 1960s, Bennett re-recorded Victory at Sea in a famed series of three stereo records for RCA Victor, conducting a studio orchestra, the RCA Victor Symphony Orchestra. These have all been reissued by RCA on CD.)