DWBS-TV

DWBS-TV, analog channel 10, virtual channel 12 (UHF digital channel 20), is an NBS owned-and-operated television station licensed to Cabanatuan City, Nueva Ecija and serves both Nueva Ecija and Metro Manila, due to its transmitter. It is owned by NBS Pilipinas Inc., as part of a legal duopoly with Manila-licensed NBS2 owned-and-operated television station DZNB-TV (channel 22). Both stations share studios and digital transmitting operations in the NBS Pilipinas Studios (official name; known by the name NBS Broadcasting Center) in Gapan City, while DWBS-TV has its own analog operations in Cabanatuan.

History
The nucleus of National Broadcasting System began in 1947 with Alpha Electronics Corporation (AEC). It was the brainchild of the Salvacion family. At that time, the largest media company was Manila Broadcasting, with DZRH as the leading radio station. In 1947, Salvacions shifted Alpha to radio broadcasting with DWBS and followed suit  in building a television network in 1957, after the introduction of television to the country in 1953.