The network was founded in July 1975 by Alfonsio Rubio Jr. The first TV station was DWGS-TV channel 5 (now channel 10) in Metro Manila. Followed by other Luzon, Visayas, and Mindanao stations in 1976-1979.
The network gained popularity when Filipino viewers had critically acclaimed the The Drillmation Series anime starting with Angry German Kid and other entertainment programs including an EK program in 1978.
During the EDSA revolution happened, GSTV opened more TV stations, with DWGS-TV frequencies moved to channel 11 in November 1. In 1993, the channel moved to VHF 10.
In October 2013, GSTV becomes first television network to broadcast in full HD, available on SkyCable, D-Net, Cignal PH, etc. Also available in El Kadsre via ElStar and Cignal.