Reyes. The marathon radio-TV simulcast of a major coverage — the first of its kind by a Philippine media firm, was a success, and the Radyo Patrol format later became an integral part of DZAQ's broadcasts, with the station's field reporters being assigned to cover breaking news stories and then calling the station to convey these stories as they happened. Encouraged by the success of the field reports of breaking news stories in the Greater Manila Area and beyond, DZAQ was later that year converted into a 24-hour uninterrupted news and commentary station by orders of the corporation management, covering many national events of great importance to listeners, as DZXL took over its entertainment and music programming. Based on a survey conducted by Seamark, Inc., DZXL was the most popular radio station in the country by mid-1970. At the same time, the original team of 5 field reporters was later expanded to include both young announcers like Rey Langit (now with DZRJ-AM), Ernie Baron, and Manolo Favis (now with Radyo La Verdad 1350), alongside industry news veterans. By 1971, the success of the Radyo Patrol format in the Greater Manila Area had led to select ABS-CBN provincial radio stations establishing Radyo Patrol news services within their areas. Martial law period and until 1986 However, during the night of September 23, 1972, the operations of DZAQ, DZXL, DZMM-FM, DZAQ-TV and DZXL-TV along with 4 other ABS-CBN AM radio stations were halted as Metrocom forces seized ABS-CBN Broadcasting Center two days after President Ferdinand Marcos declared martial law; DZAQ/DZXL personalities were even arrested because of strict censorship as the stations went off the air. Two years after the forced shut down of all radio and television stations, DWWW (Radyo Broadcast City), an AM station of Kanlaon Broadcasting System (now known as Radio Philippines Network) signed on the air in 1973 with news, public service programs, drama and music. Veteran anchors and new recruits like Johnny de Leon, Rod Navarro, Joe Taruc and Vic Morales came into DWWW at that time. Dely Magpayo, Henry Jones Ragas, Gel Santos-Relos and Noli de Castro were among those who worked as station announcers. Under the KBS/RPN control, the station was dubbed Pinakamatatag sa Buong Pilipinas (The strongest in the Philippines). Following the switch of the Philippine AM radio stations from NARBA-implemented 10 kHz spacing (which was used from 1922 up to November 22, 1978) to GE75-implemented