Nippon Broadcasting System was created on 2006-04-01.
Nippon BS Broadcasting was created in 1999.
Nippon Cultural Broadcasting was created on 1952-03-31.
Chubu-Nippon Broadcasting was created on 1956-12-01.
Maritime Broadcasting System was created in 1969.
Amalgamated Broadcasting System was created in 1933.
Seoul Broadcasting System was created in 1990.
Broadcasting System of San-in was created in 1954.
Shizuoka Broadcasting System was created in 1952.
Turner Broadcasting System was created in 1979.
Akita Broadcasting System was created in 1953.
Liberty Broadcasting System was created in 1948.
Korean Broadcasting System was created in 1961.