Sanyo Broadcasting Co., Ltd (RSK) was established in 1953.
RSK provides both television and radio broadcasting services in Okayama and Kagawa prefecture.
Since its first radio broadcast in 1953 as Radio Sanyo Company and then TV broadcast in 1958.
RSK belong to the Japan News Network (JNN) and Japan Radio Network (JRN).
Tokyo Broadcasting System, Inc. (TBS) has served as the key station for the 34-member Japan Radio Network (JRN) and the 28-member Japan News Network (JNN), supplying both domestic and international news.