, or MBS, is a radio and television broadcasting company headquartered in Osaka, Japan, affiliated with Japan Radio Network (JRN), National Radio Network (NRN), Japan News Network (JNN) and TBS Network, serving in the Kansai region. It is a parent company of a television station named and a radio station named . MBS is also one of the major stockholders of TBS Holdings, BS-TBS, RKB Mainichi Broadcasting, i-Television, TV-U Fukushima, Hiroshima Home Television, WOWOW., and FM802. History The was founded on December 27, 1950. NJB commenced radio broadcasting from the Hankyu Department Store on September 1, 1951, as the second commercial radio station in Japan. NJB founded on December 1, 1956 with Asahi Broadcasting Corporation (ABC). NJB was renamed "Mainichi Broadcasting System, Inc." on June 1, 1958. On March 1, 1959, after selling all stocks of OTV to ABC, MBS started analog terrestrial television broadcasting independently from OTV, and made a network with Nippon Educational Television Co., Ltd. (NET, the predecessor of TV Asahi Corporation). In 1960 a broadcasting studio was completed in Senri. In 1964 MBS formed a radio network with TBS Radio and RKB Radio, which evolved into Japan Radio Network (JRN) in 1965. in 1974 MBS joined the All-Nippon News Network (ANN). However, MBS joined the Japan News Network (JNN) on March 31, 1975 due to then-president of the Asahi Shimbun's order to the ABC to switch its flagship station to NET. On May 15, 1977, the frequency of MBS Radio changed from 1210 kHz to 1180 kHz. The American Broadcasting Company (ABC, not to be confused with the Asahi Broadcasting Corporation) acquired a 5% stake on New Japan Broadcasting in 1951 and remained as a shareholder in MBS through the 1970s; ABC retained 5% of all shares in 1977, making it the third largest shareholder at the time. On November 23, 1978 at 5:00am MBS Radio's frequency was moved again from 1180 kHz to 1179 kHz. In 1990 the new headquarters and studios was completed in Chayamachi, Kita Ward, Osaka for the station's 40th anniversary. MBS moved and merged the headquarters and studio on September 1; the registered headquarters from the Mainichi Shimbun Osaka Head Office, and the broadcasting studio from Senri. MBS Now aired for the last time on September 29, 2000. It was replaced by Voice on October 2. On March 31, 2001 a broadcasting studio called "MBS Studio in USJ" was opened at