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Mainichi Broadcasting System

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A Japanese commercial broadcaster serving the Kansai region through television, radio, news, entertainment, and digital media.

Last updated November 4, 2026

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Overview

Mainichi Broadcasting System, commonly known as MBS, is a Japanese commercial broadcaster based in Osaka. Its core service area is the Kansai region, where it operates television and radio businesses and produces news, information, sports, drama, variety, cultural, and children’s programming. The company is particularly associated with the MBS television station in Osaka, identified in Japan’s commercial broadcasting system by the call sign JOOR-DTV, and with MBS Radio, whose programming is distributed primarily in the Kansai market. The company was established in 1950 as New Japan Broadcasting Company during the early expansion of private broadcasting in Japan. It began radio operations in 1951 and entered television broadcasting in 1959. The broadcaster later adopted the Mainichi Broadcasting System name and developed a dual-media structure in which radio and television complemented one another while maintaining separate schedules, production practices, and advertising markets. Its location in Osaka placed it at the center of Japan’s second-largest metropolitan media market and gave it a strong regional identity distinct from Tokyo-based national networks. MBS is a key affiliate of the Tokyo Broadcasting System network, now associated with the JNN news network and the JNN television programming system. Through this relationship, MBS distributes programs produced in Osaka across Japan and carries programs supplied by TBS Television and other network partners. It has also participated in the JRN radio network. The company’s output includes locally originated news and current-affairs programs, Kansai-focused information shows, professional and amateur sports coverage, talk and variety formats, serialized drama, documentaries, animation, and special events. Some MBS productions have achieved national recognition through network distribution, while others are designed specifically for viewers and listeners in Osaka, Kyoto, Hyogo, Nara, Shiga, and Wakayama. In addition to conventional broadcasting, MBS has expanded into program production, event organization, content licensing, digital distribution, and related media activities. Its media portfolio reflects the broader transformation of Japanese commercial broadcasting from a terrestrial transmission business into a diversified content and communications operation. The broadcaster has maintained a recognizable on-air identity through the MBS name and logo while operating within the wider MBS corporate group. A corporate reorganization in 2017 separated the broadcasting operating company from the holding-company structure. MBS Media Holdings became the listed parent, while Mainichi Broadcasting System, Inc. continued as the operating broadcaster. This arrangement placed television and radio operations within a group that could also manage investments and businesses outside the directly regulated broadcasting company. MBS remains an active regional broadcaster, with its main strategic importance deriving from its Kansai audience, its connection to the TBS/JNN network, and its ability to originate and monetize Japanese television, radio, and digital content.

History

Mainichi Broadcasting System emerged during the creation of Japan’s postwar commercial broadcasting sector. The company was established in Osaka in 1950 under the name New Japan Broadcasting Company. Its formation reflected the development of privately operated radio stations after the Second World War and the importance of Osaka as a major national business and cultural center. The broadcaster began radio transmissions in 1951, giving Kansai listeners a locally based commercial alternative to public broadcasting and to programming originating in Tokyo. During the 1950s, the company built its identity around radio news, entertainment, music, sports, and advertising-supported programming. It subsequently expanded into television, beginning television broadcasting in 1959. Television quickly became the company’s principal growth engine, although radio remained an important part of its relationship with local audiences. The company adopted the Mainichi Broadcasting System name as its television and radio activities developed and became widely known by the abbreviation MBS. MBS’s position in Osaka shaped its programming strategy. It produced programs reflecting Kansai culture, commerce, politics, and entertainment while also participating in national network distribution. On television it became affiliated with the TBS-centered JNN and JNN programming structure, enabling MBS-originated programs to reach audiences outside the Kansai region and allowing the Osaka station to carry programs produced by network partners. In radio, it participated in the Japan Radio Network. These relationships gave MBS a dual role: it was both a regional broadcaster with its own editorial and production identity and a major node in Japan’s nationwide commercial broadcasting system. Over subsequent decades, MBS broadened its programming portfolio. News and current affairs remained central, but the company also developed variety shows, serialized drama, documentaries, sports coverage, animation, cultural programs, and major live events. Its production activities helped establish a flow of content between Osaka and other parts of Japan. The company’s television and radio operations also supported ancillary businesses such as program merchandising, licensing, event production, and the distribution of content through newer digital channels. The Japanese broadcasting market changed substantially in the late twentieth and early twenty-first centuries as satellite television, cable, internet video, mobile media, and changing advertising patterns challenged the traditional terrestrial model. MBS responded by extending its content presence beyond scheduled broadcasts and by participating in digital and group-level media activities. Like other Japanese commercial broadcasters, it has had to balance local terrestrial obligations, network coordination, content investment, audience fragmentation, and the continuing importance of live news and sports. In 2017, MBS adopted a holding-company structure. MBS Media Holdings became the parent company, while Mainichi Broadcasting System, Inc. continued as the operating broadcaster. The reorganization allowed broadcasting to remain in a dedicated operating entity while the group managed broader investments and related businesses through the holding company. MBS today remains an active Osaka-based television and radio broadcaster. Its historical significance rests on its early role in private radio, its expansion into television, its contribution to Kansai media culture, and its long-standing participation in the TBS/JNN and JRN network systems.

  • 2017

    Holding-company reorganization

    [2]

    MBS Media Holdings was established as the parent company, with Mainichi Broadcasting System continuing as the broadcasting operating company.

  • 1959

    Television broadcasting begins

    [1]

    MBS entered terrestrial television broadcasting from Osaka, expanding its role from radio into dual-media operations.

  • 1951

    Radio broadcasting begins

    [1]

    The broadcaster began commercial radio operations in the Kansai region.

  • 1950

    Company established

    [1]

    The company was established in Osaka as New Japan Broadcasting Company during the formation of Japan’s postwar commercial broadcasting industry.

Products and positioning

A leading commercial broadcaster in the Kansai region, combining strong local programming with national distribution through the TBS/JNN television network and JRN radio relationships.

  • Terrestrial television · 1959

    MBS Television

    MBS’s Osaka-based commercial television service provides locally produced news, information, variety, drama, sports, documentary, animation, and cultural programming. It also carries programming supplied through the TBS/JNN network relationship. The service combines Kansai-focused output with programs intended for distribution across Japan.

  • Commercial radio · 1951

    MBS Radio

    MBS Radio is the company’s radio operation, originating from the broadcaster’s first service launched in 1951. Its schedule includes news, talk, music, sports, entertainment, and information programming aimed primarily at listeners in the Kansai market, with wider distribution possible through network and digital channels.

  • News and current affairs

    MBS News

    MBS News represents the broadcaster’s local and network news activity, covering Osaka and the broader Kansai region as well as national and international developments. News output is distributed through television, radio, websites, and other digital formats associated with the MBS brand.

  • Content production

    MBS program production and licensing

    MBS develops and produces television and radio programs for local broadcast and network distribution. Related activities include content licensing, event production, digital publication, and other forms of exploitation for programs and intellectual property. Specific services and business units have changed as the company has adapted to internet and multi-platform distribution.

Brand decisions

  • 2017

    Adoption of a holding-company structureStrategy

    Background

    Japanese broadcasters have used holding-company structures to separate regulated broadcasting operations from broader group management and investment activities.

    Action taken

    MBS placed Mainichi Broadcasting System, Inc. under MBS Media Holdings as the group’s broadcasting operating company.

    Aftermath

    The operating broadcaster continued its television and radio activities while the holding company became responsible for group-level governance and broader business coordination.

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