GMA Network, Inc. (commonly known as GMA) is a Philippine media company based in Diliman, Quezon City, Philippines. It is primarily involved in radio and television broadcasting, with subsidiaries dealing in various media-related businesses. The majority of its profits are derived from publicity and marketing incomes associated with television distribution. GMA is the largest media company in the Philippines in terms of market capitalization, net income, revenue, reach, audience share, and number of stations. Founded on June 14, 1950, it currently owns and operates two national television networks (GMA Network and GTV), 4 digital terrestrial television channels (Heart of Asia, Hallypop, Pinoy Hits, and I Heart Movies), 2 national radio stations (Super Radyo DZBB 594 kHz and Barangay LS 97.1), two regional radio networks (Super Radyo and Barangay FM), and one regional tv network, 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) and (GMA Playlist), talent development and management (Sparkle GMA Artist Center), digital terrestrial television providers (GMA Affordabox and GMA Now) and some Internet and digital converging technology (GMA New Media) in the Philippines. The company is a publicly traded company on the Philippine Stock Exchange.