77 years ago today, RCA's NBC Symphony Orchestra broadcast its first transmission back in 1937.
Here is Maestro Toscanini conducting during an NBC Broadcast on March 21 1954: http://youtu.be/KTnXvDKzIPk
Arturo Toscanini BIO: http://www.biography.com/people/arturo-toscanini-21449193
The Radio Corporation of America, was an American electronics company from 1919 to 1986 when General Electric took over the company in 1985 and split it up.
The RCA trademark is used by Sony Music Entertainment and Technicolor, which licenses the name to other companies such as Audiovox and TCL Corporation for products descended from that ancestor.