DWDB-TV, channel 27 is the flagship UHF station of the Philippine television network GTV, wholly owned by Citynet Network Marketing and Productions, a subsidiary of GMA Network Inc. Its studios are located at the GMA Network Center, EDSA corner Timog Avenue, Diliman, Quezon City, while its analog and digital transmitter station are located at the GMA Tower of Power, Tandang Sora Avenue, Barangay Culiat, Quezon City. It is the first UHF station operated by a major network in the Philippines. GTV operates Mondays to Thursdays from 5:30 AM to 1:00 AM, Fridays to Sundays from 5:30 AM to 12:00 midnight, on both analog and digital free TV and 24/7 on cable and satellite providers.