During the 16 years and one month from the start of TV broadcasting until the network affair was resolved, it was a key station of NET (now TV Asahi) and was subsequently affiliated to the All-Nippon News Network (ANN) upon its opening.

After that, on April 1, 2021, "MBS Radio Co., Ltd.", which was newly established as a wholly-owned subsidiary of MBS Media Holdings, took over the radio broadcasting license and business that Mainichi Broadcasting had held, and moved exclusively to television (JOOR-DTV changed to JOOY-DTV).

It has a strong connection with RKB Mainichi Broadcasting, co-produced and co-sold radio programs, and on television, even during the pre-1975 affair era, Kyushu Asahi Broadcasting (KBC) sold in-house programs that were not organized or sponsored net, and jointly established a health insurance union, and are presenting aspects of sister companies.

In addition, the remote control key ID for analog master stations and digital broadcasting is also "4".

In July 2019, a disaster information sharing partnership agreement was signed between FM802 and FM COCOLO operated by the company.

[1] Among the TV stations in Osaka, it is located in a busy area, and the front of the head office is also used by commuters on weekdays.

At the same time, Mainichi Broadcasting set up a television studio on the 8th and 9th floors of the south building of the Mainichi Osaka Kaikan under construction, and built a signal transmitting station on the top of Ikoma Mountain.

[2]: 164  In the mid-1960s, Mainichi Broadcasting participated in the establishment of Tokyo Channel 12 by the Japan Science and Technology Foundation.

Therefore, the financial circle once had the idea of merging Tokyo Channel 12 with Mainichi Broadcasting.

[2]: 149–152  In 1971, Mainichi Broadcasting Corporation stopped airing NET TV's "23rd Show" on the grounds that the program content was too vulgar, causing a sensation in the Japanese television industry.

It became an associate member of the European Broadcasting Union in 1969 and signed cooperation agreements with foreign television stations such as WGN-TV in the United States, CBLT-DT in Canada, Czechoslovak Television, ZDF in West Germany and TF1 in France.

[2]: 136–137  Mainichi Broadcasting attaches great importance to international cultural cooperation and hosted the Kansai Performance of the Vienna Boys' Choir in 1964.

This resulted in the fact that the Kansai region TBS affiliate is the channel 6 controlled by the Asahi Shinbun.

[2]: 341–342  In the early 1970s, Japan's four national newspapers conducted an exchange of shares in television stations.

Mainichi Broadcasting ranked first in prime time ratings for 26 consecutive weeks in the first half of 1978.

[2]: 582–583 In 1986, Mainichi Broadcasting regained the top position in advertising revenue among Osaka stations.

[2]: 413–416 The current company building was completed on September 1, 1990 on the site of the Hankyu Department Store Distribution Center in Chayamachi, Kita-ku, Osaka.

Headquarter functions such as sales and accounting at Mainichi Osaka Kaikan, departments such as the news department at Senrioka Broadcasting Center, and some television and radio programs produced at Senrioka were moved to the new company building in Chayamachi.

On December 1, 2003, MBS alongside ABC, KTV, YTV and TVO started their digital broadcasts signals.

Osaka City applied the "Business/University Location Promotion Subsidy Program",[3] and construction began in April 2011.

[4] In the B building, there are two studios for TV programs, offices, heliport, height of about 36m (about 117m above ground), radio towers, etc.

[6][7] In addition, the "Chapla Stage" on the 1st floor of the M Building was also renovated on the premise of incorporating it into the "Live Center".

[8] The split was completed by April 1st of the following year and as a result, the TV callsign was changed to JOOY-DTV.

When it got stiff, NOTV suggested bringing channel 2, which had been assigned to NHK in Himeji, Hyogo Prefecture, to the Osaka area.

In addition to the remote control key ID "4", RKB Mainichi Broadcasting in Fukuoka Prefecture uses "4" for the same reason.

In principle, the remote control key ID "4" is used by many Nippon Television affiliates , but the remote control key ID for Yomiuri TV broadcasting of the same Osaka wide area station and Nippon Television affiliated quasi-key station is the parent of the analog broadcasting channel.