 KGTF's studios are located in Mangilao, adjacent to Guam Community College, and its transmitter is located on Mount Barrigada in Barrigada.The station signed on the air on October 30, 1970, with only 4½ hours of programming Monday through Friday, of which they would later expand throughout its nearly 50-year history, including producing local shows and various projects.PBS Guam received PBS' overhaul branding in late-November 2019.