by december 1973, the network also operated dycb-tv 3 in cebu and dyxl-tv 4 in bacolod, both of which were also originally owned by abs-cbn. their call signs were also changed to dycw-tv and dybw-tv, respectively. the cebu and bacolod stations switched affiliations to gtv (government television; later the maharlika broadcasting system) in 1978 and reverted to their former call letters.