Years later, when ABS and the Lopez-owned Chronicle Broadcasting Network (CBN) were formally merged into a single network in 1967, DZAQ 620 kHz switched frequencies with CBN-owned DZXL 960 kHz and was later rebranded as DZAQ Radyo Patrol 960 kHz, one of the pre-martial law flagship AM stations of ABS-CBN until 1972. Orly Mercado, who was one of the station managers from 1969 to 1971, together with Ben Aniceto, came up with a vision to establish a 24-hour all-news and all-talk radio station and ABS-CBN conceptualized it under the "Radyo Patrol" brand – the de facto successor of the ephemeral 24 hour news station DZQL Radyo Reloj, which CBN launched in 1956 (the very year it launched), and the first-ever 24-hour news radio station in the country and in Southeast Asia.