The broadcaster's radio division, RBC iRadio, callsign JORR serves as an affiliate of the Japan Radio Network while its television division, RBC Television, callsign JORR-DTV (channel 3) serves as an affiliate of the Japan News Network.

[1]: 2  On February 1, 1953, its call sign changed to KSAR, alongside the increase of the broadcaster's transmitting power.

[1]: 2  On April 1, 1954, the radio station was handed over to the University of Ryukyu Foundation owing to a shift in the broadcasting industry in the United States, which had an impact on Okinawa as well.

[1]: 26 Due to financial problems of the said university's foundation, Ryukyu Broadcasting was established on September 20, 1954 with a capital of ¥10 million to take over the radio operations of the Voice of Ryukyus, with Okinawa Times being the primary owner.

[1]: 4  An English version of the existing radio station started broadcasting on September 1 of the following year, with the callsign KSBK, primarily aimed for the US military and their families.

[1]: 50 Ryukyu Broadcasting also composed "RBC Song", which was played since 1964 during sign-on and sign-off on both TV and radio until they went 24/7/365 on April 1, 2022.

In the same year, Ryukyu Broadcasting also won the first JNN Special Award[1]: 36  for its report on the Okinawa issue.

In 1972, as the United States returned control of Okinawa to Japan, Ryukyu Broadcasting's call signs also changed.

TV Asahi will utilize Ryukyu Broadcasting's talents and equipment to open a new station in Okinawa Prefecture.

This model that is very close to "one station and two channels" is also the first new attempt in the Japanese radio and television industry, aiming to minimize costs.