One Mindanao, formerly Testigo: GMA Super Balita, Testigo: Alagad sa Kamatuoran, 24 Oras Southern Mindanao and 24 Oras Davao is a Mindanao-wide regional program airing on all GMA Network stations in Mindanao. Broadcasting live from the GMA Davao and GMA Cagayan de Oro stations, One Mindanao covers the most significant news and features in all 6 regions in Mindanao, namely Davao Region, Northern Mindanao, Caraga, Soccsksargen, Autonomous Region in Muslim Mindanao, and Zamboanga Peninsula, through the network's news teams from Northern and Southern Mindanao and news stringers and correspondent across the region.
The newscast airs from Monday to Friday from 5:00 PM to 5:30 PM pre-empting the first 30 minutes of Wowowin with its GMA Davao broadcast center located at Shrine Hills, Matina, Davao City and GMA Cagayan De Oro broadcast center located at 2nd floor Centro Mariano Building, Sergio Osmeña St., Barangay 12, Cagayan de Oro City. GMA TV-5 Davao, GMA TV-35 Cagayan de Oro, GMA TV-8 General Santos, GMA TV-4 Dipolog, GMA TV-3 Pagadian, GMA TV-11 Iligan, GMA TV-12 Bukidnon, GMA TV-5 Ozamiz, GMA TV-26 Butuan, GMA TV-10 Surigao, GMA TV-2 Tandag, GMA TV-9 Zamboanga, GMA TV-12 Cotabato and GMA TV-12 Jolo. It is also simulcast over radio slightly basis on via Super Radyo DXGM 1125 kHz AM.
To strengthen its commitment of bringing the latest, most credible and most comprehensive news from the region, in February 2013, the newscast started its international broadcast on GMA News TV International alongside other regional newscasts Balitang Amianan and Balitang Bisdak.
News at Seven Davao/News on Five Davao
Testigo: GMA Super Balita
Testigo: Alagad sa Kamatuoran
24 Oras Southern Mindanao
24 Oras Davao
On January 2, 2017, the newscast updated its opening billboard, soundtrack and lower third graphics similar to 24 Oras, together with other newscasts Balitang Amianan and Balitang Bisdak.
GMA Regional TV One Mindanao
Updated logo with GMA Regional TV logo.
On August 19, 2019, the newscast updated its opening billboard, soundtrack, and lower third graphics similar to GMA Regional TV Weekend News, together with other newscasts GMA Regional TV Balitang Amianan, GMA Regional TV One Western Visayas, and GMA Regional TV Balitang Bisdak.