GMA Network (Global Media Arts or simply GMA) is a major commercial broadcast television and radio network in the Philippines. GMA Network is the flagship owned by GMA Network Inc., a publicly listed company. Its first broadcast on television was on October 29, 1961, GMA Network (formerly known as DZBB TV Channel 7, RBS TV Channel 7, GMA Radio-Television Arts then GMA Rainbow Satellite Network) is commonly signified to as the "Kapuso Network" in reference to the outline of the company’s logo. It has also been called the “Christian Network” which refers to the apparent programming during the tenure of the new management, which took over in 1974. It is headquartered in the GMA Network Center in Quezon City and its transmitter, Tower of Power is located at Tandang Sora Avenue, Barangay Culiat also in Quezon City.[2] The original meaning of the GMA acronym was Greater Manila Area, referring to the initial coverage area of the station. As the network expanded it changed into Global Media Arts. At present the corporate name is simply GMA Network Inc.[3] Today, is the flagship television station of GMA Network is DZBB-TV (GMA 7 Manila) The company has 3 originating stations and 50 relay stations nationwide. Its programing are available the channel is targeted towards overseas Filipinos the three international channels (GMA Pinoy TV, GMA Life TV and GMA News TV International).