Ishigaki Broadcasting System

1955-1966
IBS began in 1955 as Radio Ishigaki (ラジオ石垣).

1966-1993
RIC branched out into television broadcasting in 1967, in preparation, the legan name was changed to IBS. Although the English name is Ishigaki Broadcasting System, it's often referred to under the initials in order to avoid confusion with IHK.