Republika FM1 (2020-2024) The Presidential Broadcast Service - Bureau of Broadcast Services (PBS-BBS) (Filipino: Pampanguluhang Serbisyong Pambrodkast - Kawanihan ng mga Serbisyong Pambrodkast[1]), is a state radio network owned by the Philippine government under the Presidential Communications Office (PCO).

As one of the attached agencies of the OPS, the PBS-BBS receives funding from the General Appropriations Act (Annual National Budget) and sales from blocktimers and advertisers, among others.

KZFM first operated under the Department of Foreign Affairs until it was transferred to the Radio Broadcasting Board (RBB), created by President Manuel Quezon on September 3, 1937.

In 1947, an International Telecommunications Conference in Atlantic City, New Jersey, assigned the initial letters DU-DZ to replace K as the callsign prefixes for all radio stations in the Philippines.

In the 1960s, PBS' radio network expanded to the key provinces with DZEQ in Baguio, DYMR in Cebu, DYCI in Iloilo, DXRP in Davao and DZMQ in Dagupan.

The National Media Production Center (NMPC) had acquired the facilities of Voice of America in Malolos, Bulacan in 1965 and steadily brought the old complex up to standards by a steady overhaul, fine-tuning, and outright replacement of outmoded equipment and machines.

In the 1970s, public broadcasting in the Philippines was thus represented by the BBS and the NMPC and catered to the educational and cultural needs of its audiences while endeavoring to keep it entertained with fare from indigenous material.

During the final months of Martial Law, both the BB and the NMPC were brought under one administrative roof in 1980 when the Office of Media Affairs was created to provide a loose union for both networks within the Broadcast Plaza along Bohol (now Sgt.

It was not an ideal situation, since, as there had been no clear guidelines on the proper implementation of their respective operational strategies, the BB and the NMPC often squabbled, to the detriment of public broadcasting goals.

During the first years in the administration of President Benigno Aquino III, the PBS-BBS was transferred to the newly created Presidential Communications Operations Office (PCOO), after the OPS was abolished.

During his first State of the Nation Address, President Rodrigo Duterte announced that Congress would pass a proposed law merging the PBS with its TV counterpart, People's Television Network to form the "People's Broadcasting Corporation (PBC)", which serves a unified broadcasting entity of the republic encompassing radio, television, print and online media.

The station operates daily from 5 a.m. to 8 p.m. Radyo Magasin mainly airs general information, culture-oriented programming and music-oriented shows every weekend.

On October 5, 2020, PBS resumed the broadcast operations of DZRM, then the latter will also serve as disaster preparedness and information dissemination station aiming for the public to be prepared for any natural calamities.

RP World Service main programming consists of 2–3 hours of broadcast in Filipino and English languages, and is transmitted via shortwave through the facilities of Voice of America in Tinang, Tarlac.

In 2016, radio veteran Rizal "Sonny B" Aportadera, Jr. was appointed by then-PCOO Secretary Martin Andanar as the Director General of the Philippine Broadcasting Service (PBS).

It is situated at 104.3 MHz in Metro Manila, and is recognized as the number one niche radio station in the A/B/C market based on Nielsen Ratings.