sentences:  GMA Davao began operations in 1965 as DXSS-TV channel 7, the first provincial television station in Mindanao.DXSS-TV was inaugurated by Southern Broadcasting Network under the affiliations of GMA Network's predecessor Republic Broadcasting System.Eight years after the successful of the radio station DXSS-AM, the company ventured into television broadcasting as DXSS Channel 7 with the rebranding of RBS TV-7 Davao (now known as ETC TV-7 Davao).