 The majority of its profits are derived from publicity and marketing incomes associated to television distribution.Founded on June 14, 1950, it currently owns and operates two national television networks (GMA Network and GMA News TV), two national radio stations (Super Radyo DZBB 594 kHz and Barangay LS 97.1), two regional radio networks (Super Radyo and Barangay FM), It also operates three international channels (GMA Pinoy TV, GMA Life TV and GMA News TV International), along with subsidiaries dealing in film production and distribution (GMA Pictures), music production and publishing (GMA Music), talent development and management (GMA Artist Center) and a number of internet and digital converging technology (GMA New Media) in the Philippines.The company is a publicly traded company on the Philippine Stock Exchange.