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 property of publicly traded GMA Network Inc. Its first broadcast on television was on October 29, 1961, GMA Network (formerly known as 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 1975. 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.