Akita Broadcasting System was created in 1953.
Akita Asahi Broadcasting was created in 1992.
Amalgamated Broadcasting System was created in 1933.
Maritime Broadcasting System was created in 1969.
Liberia Broadcasting System was created in 1960.
Liberty Broadcasting System was created in 1948.
Spanish Broadcasting System was created in 1983.
Educational Broadcasting System was created in 1990.
Yamanashi Broadcasting System was created in 1954.
Seoul Broadcasting System was created in 1990.
Broadcasting System of San-in was created in 1954.
Shizuoka Broadcasting System was created in 1952.
Kalayaan Broadcasting System was created in 2001.