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Mabuhay Broadcasting System

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A Philippine radio broadcasting company whose stations are operated under the Win Radio brand.

Last updated August 31, 2026

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Overview

Mabuhay Broadcasting System, Inc. (MBSI) is a Philippine broadcasting company focused primarily on commercial radio. The company was organized during the martial-law period in November 1973 by Quirino De Guzman Sr. and Arcadio M. Carandang. De Guzman contributed financial resources and an operating franchise, while Carandang brought technical expertise and broadcasting equipment. The corporation was registered with the Philippine Securities and Exchange Commission on December 13, 1973. MBSI developed as a radio-network business whose principal revenue source is the sale of airtime to blocktimers. Under this model, independent program producers, organizations, or other media operators purchase scheduled broadcast periods and provide or arrange programming, while the station owner supplies transmission facilities and access to its audience. This differs from a fully centralized network model in which the broadcaster produces most of its own programming. The arrangement has allowed MBSI to operate a geographically distributed station portfolio while relying substantially on airtime contracts. The company received a 25-year legislative franchise on April 13, 1992, through Republic Act No. 7395. The franchise authorized it to construct, install, operate, and maintain commercial radio broadcasting stations in Luzon. A franchise renewal approved in 2016 broadened the authorized coverage to radio and television broadcasting throughout the Philippines, although the company's documented operating identity has remained principally associated with radio. Ownership has been connected to the De Guzman family and, more recently, the Ragasa family, identified as the heirs of Quirino De Guzman Sr. A recent corporate filing cited in reference material attributed approximately 64 percent of the company to the Ragasa family. MBSI also became associated with other Philippine broadcasting interests. Following changes involving the DZXQ station in 2011, the Henares family acquired a minority interest in MBSI, linking the company to Progressive Broadcasting Corporation, a national radio and television group led by Alfredo “Atom” L. Henares. After the 2016 franchise renewal, MBSI acquired provincial stations previously owned by Progressive Broadcasting Corporation. MBSI's stations are operated by ZimZam Management under the Win Radio brand. Manuelito “Manny” F. Luzon is identified as the manager associated with that operating arrangement. The company's main studio is located at Summit One Tower on Shaw Boulevard in Mandaluyong, Metro Manila, while its corporate office is in Ortigas Center, Pasig. The available reference material does not establish a separate consumer-facing product portfolio beyond its radio stations, broadcast airtime, and related network operations. It also does not provide sufficient information to determine the company's current detailed station roster, financial performance, or present corporate leadership beyond the ownership and management relationships described above.

History

Mabuhay Broadcasting System emerged in the Philippines during the period of martial law. In November 1973, Quirino De Guzman Sr. and Arcadio M. Carandang agreed to establish a broadcasting venture. Their contributions were complementary: De Guzman supplied financial resources and access to a needed franchise, while Carandang contributed technical knowledge and new equipment. The company, referred to as Mabuhay Broadcasting Systems, Inc. in corporate descriptions, was registered with the Securities and Exchange Commission on December 13, 1973. The company's principal field became commercial radio. Rather than depending exclusively on internally produced programming, MBSI generated much of its income by selling airtime to blocktimers. This arrangement made the network a platform for third-party programming and advertising as well as a conventional station operator. Its later station operations were conducted under the Win Radio identity, with ZimZam Management handling the stations and Manuelito “Manny” F. Luzon identified as its manager. A major regulatory milestone came on April 13, 1992, when MBSI received a 25-year legislative franchise under Republic Act No. 7395. The authorization covered the construction, installation, operation, and maintenance of commercial radio stations in Luzon. The franchise provided the legal basis for a broader regional station network, although the available material does not list every station or provide a complete chronology of individual frequency launches and closures. The ownership and affiliation structure changed during the 2010s. In 2011, DZXQ was acquired by a new set of investors, a transaction later connected with Information Broadcast Unlimited. Around the same period, the Henares family acquired a minority interest in MBSI. This made the company an affiliate of Progressive Broadcasting Corporation, a Philippine radio and television network headed by Alfredo “Atom” L. Henares. The ownership information cited in reference material identifies the Ragasa family, heirs of Quirino De Guzman Sr., as the majority owners, with a 64 percent share reported in a recent SEC filing. MBSI's legislative franchise was renewed in 2016. House Bill No. 5982 passed the Philippine House of Representatives and Senate on February 1, 2015, and was approved by President Benigno Aquino III on May 10, 2016. The renewed franchise extended the authorization for another 25 years and expanded the permitted geographic and technological scope from Luzon commercial radio to radio and television broadcasting throughout the Philippines. Following the renewal, MBSI acquired provincial stations previously owned by Progressive Broadcasting Corporation, strengthening its position as a multi-station operator. The company's corporate office is reported at The Centerpoint in Ortigas Center, Pasig, while its main studio is at Summit One Tower on Shaw Boulevard in Mandaluyong. The documented business remains centered on Philippine radio broadcasting, station operations, and the sale of airtime. Publicly available reference material does not establish whether MBSI has developed a substantial independently branded television operation, nor does it provide current financial statements, a definitive contemporary executive roster, or a complete list of active and former stations. Those details require further corporate or regulatory research.

  • 2016

    Expanded franchise becomes law

    [1]

    President Benigno Aquino III approves the franchise renewal on May 10, extending the authorization and broadening its scope nationwide.

  • 2016

    Provincial stations acquired

    [1]

    MBSI acquires provincial stations previously owned by Progressive Broadcasting Corporation.

  • 2015

    Franchise renewal bill approved by the Philippine legislature

    [1]

    House Bill No. 5982 is approved by the House of Representatives and Senate, proposing a further 25-year franchise and expanded radio and television authority.

  • 2011

    DZXQ changes hands

    [1]

    DZXQ is acquired by a new investor group later associated with Information Broadcast Unlimited.

  • 1992

    Luzon radio franchise granted

    [1]

    Republic Act No. 7395 grants MBSI a 25-year franchise for commercial radio broadcasting in Luzon.

  • 1973

    Mabuhay Broadcasting System is organized

    [1]

    Quirino De Guzman Sr. and Arcadio M. Carandang form the broadcasting venture in November; the corporation is registered with the Philippine SEC on December 13.

Products and positioning

A Philippine commercial radio-network operator with a station portfolio managed under the Win Radio brand and a business model substantially reliant on selling airtime to blocktimers.

  • Radio broadcasting

    Commercial radio stations

    MBSI's core offering is a network of Philippine commercial radio stations. The stations provide transmission capacity, local and network programming, and advertising access. The company has historically operated within Luzon and later received authority covering broadcasting throughout the Philippines. The available reference does not provide a complete current station list.

  • Radio network brand

    Win Radio

    Win Radio is the operating brand under which MBSI stations are managed by ZimZam Management. It represents the network-facing identity of the stations rather than a separately documented consumer-goods product. Programming and station availability may vary by market, and the supplied material does not establish a complete list of current outlets.

  • Broadcast advertising and programming

    Blocktime airtime

    MBSI sells scheduled airtime to blocktimers, making third-party program slots an important part of its commercial model. Blocktimers may use purchased airtime for programming, promotions, or advertising-supported broadcasts. This model is a revenue mechanism and programming format rather than a standalone branded service.

Brand decisions

  • 2016

    Expand the franchise from Luzon radio to nationwide radio and television authorityStrategy

    Background

    MBSI's original franchise authorized commercial radio broadcasting stations in Luzon. The renewed franchise followed legislative approval of House Bill No. 5982 and presidential approval in May 2016.

    Action taken

    The company secured a further 25-year franchise with authorization broadened to radio and television broadcasting throughout the Philippines.

    Aftermath

    MBSI subsequently acquired provincial stations previously owned by Progressive Broadcasting Corporation. The supplied sources do not establish the extent of any television rollout.

  • 2016

    Acquire provincial stations from Progressive Broadcasting CorporationM&A

    Background

    MBSI had become affiliated with Progressive Broadcasting Corporation after the Henares family acquired a minority interest.

    Action taken

    MBSI acquired provincial stations owned by Progressive Broadcasting Corporation after its franchise renewal.

    Aftermath

    The acquisition expanded MBSI's provincial station footprint, although the available material does not identify the individual stations or transaction terms.

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