Its original station FUBC TV-9 in Zamboanga was an affiliate of BBC from 1974 to 1986, ABS-CBN in 1986–1995 and GMA Network from 1995 until April 1996.

[2][3] Currently, GSTS owns a satellite television service G Sat and a free-to-air/cable news channel One Media Network, which is also available in the company's UHF stations.

This network has produced several media personalities such as Cathy Veloso Santillan (one of the original 9Alive Girls who became a broadcaster and NewsWatch anchor of RPN-9 in the early 1990s), Zamboanga City District II Congressman Erico Basilio "Erbie" Fabian and ABS-CBN Correspondent for Western Mindanao and former anchor Pal Marquez, all of whom began their careers as part of the channel's news division.

[5] On June 23, 2021, GSTS inaugurated its own Technical facilities and Earth station at the new First Global Technopark complex in Mabuhay, Carmona, Cavite.

Reports indicate that there are 5 people dead, and 21 more injured in the forementioned incident, as well as several nearby establishments and houses are also damaged.