Established in 2010 through the merger of local radio and television entities, the Guangzhou Broadcasting Network, or GZBN (廣州廣播電視台), operates major channels such as GZBN Comprehensive and News, alongside the Nanguo City 4K (南國都市4K) channel — which the network claims was the first 4K station at a municipal level in China. As a municipally-owned institution (事业单位) under the direct leadership of the Guangzhou Municipal Committee of the Communist Party of China (CCP) and the Guangzhou Municipal Government, GZBN serves as the state-run municipal broadcasting outlet for the southern city of Guangzhou. Headquartered at the Guangzhou International Media Port (廣州國際媒體港), GZBN led a transition toward high-definition broadcasting by becoming the nation’s first institution to completely phase out standard-definition channels.