One 31, fully known as Channel One 31 (Thai: สถานีโทรทัศน์ช่องวัน 31) and branded as One31 or One HD 31, is a Thai digital terrestrial television channel owned by GMM Grammy under The One Enterprise. The network offers a variety of content such as drama, variety programs, competition, news and entertainment programs. One 31 first aired on December 1, 2011 with the name 1-Sky One (วัน-สกาย วัน) with content and television programs produced by companies under GMM Grammy. On April 1, 2012, it changed its name into GMM Z Hitz (จีเอ็มเอ็มแซต ฮิตส์). More information...
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