Both stations serve said prefecture and its studios and headquarters are located in the Honmachi ward of Matsuyama.

[1]: 30–31  An entertainment event commemorating the 5th anniversary of the opening of the radio station and the opening of the television station was held at the Ehime Prefectural Civic Center (actor Ken Takakura also appeared, performing songs and skits).

[1]: 32  In order to produce its own programs, the Nankai Radio and Television Division built a studio when it first started broadcasting.

It was the first private TV station in Chugoku and Shikoku to have a studio when it started broadcasting.

[1]: 43  In 1961, Nankai Broadcasting established television broadcast stations in Niihama (JOAL-TV, channel 6, video output 250W, audio 63W), Yawatahama (channel 4), and Uwajima, and the television signals basically covered the entirety of Ehime Prefecture.

Nankai Broadcasting joined the Nippon News Network in 1966, cementing its relationship with NTV.

[1]: 76–77  Nankai Broadcasting conducted its first overseas work, also its first local color production, in 1968, interviewing Ehime people who were active throughout Southeast Asia.

[1]: 82–84  In 1969, RNB Radio and Television achieved uninterrupted broadcasting throughout the day, ending the daytime break.

On May 12, 1970, Nankai Broadcasting exchanges footage of the Setouchi Sea Jack incident with NTV/NNN affiliate Hiroshima Telecasting.

In 1976, the Nankai Broadcasting Honmachi Hall was completed and became one of the main cultural facilities in Matsuyama City.

[1]: 337 In the early 1990s, with the collapse of Japan's bubble economy and the launch of the third and fourth private TV stations in Ehime Prefecture, the competition faced by Nankai Broadcasting was significantly intensified than before.

[1]: 190–193  From October 1992 to September 1993, Nankai Broadcasting's turnover decreased by 777 million yen compared with the previous year.

As of 2017, Nankai Broadcasting has won the triple crown in household viewing ratings for nine consecutive years.

The service consists of in-house productions and aims to increase its content to include more original programming, videos and live sports.