Early years The was founded on December 27, 1950. After the end of World War II, Mainichi Shimbun intended to establish a private radio station, and the establishment of the radio station was placed in charge of the then editor-in-chief, Shinzo Takahashi. At the same time, Kansai businessmen Shinyoshi Terada and Aiji Iwasaki are also interested in getting involved in the broadcasting industry. The two hit it off immediately, and held a symposium on December 11, 1945, and decided to establish the "New Japan Broadcasting" company. 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. 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. On October 1, 2013, the Takaishi Solar Plant was situated in the area of MBS Takaishi Radio Transmitter. On April 4, 2014, the B Building was opened. On May 15, 2010, MBS began to simulcast its radio broadcasts online within the Kansai region via
Radiko together with ABC,
OBC, FM 802,
FM Osaka, and
FM Cocolo.
Later history On April 1, 2016, the radio and television divisions of MBS were taken over by the second incarnation of Mainichi Broadcasting System. On May 28, 2020, MBS announced that it would split the radio division into a separate wholly owned entity. The split was completed on April 1 of the following year with MBS Radio retaining the JOOR callsign. ==Availability==