The 'arms' themselves were the basis for the two-trapezoid 'N' logo used from 1975-87.
The network originally consisted of two 'arms', NBC Red and NBC Blue, the latter of which was sold off in October 1943 due to the FCC in June 1945, the Blue Network changed its name to ABC. NBC (short for National Broadcasting Company) is a network created in 1926 by RCA whose symbolic Peacock, originally used to signify that a program was airing 'in living color', has had many forms, including the 6-feathered rainbow Peacock that has been in use since 1986.
