| One HD 31 | |
| Launch Date: | Satellite system: Terrestrial digital: Satellite and digital: |
| Picture Format: | 1080i HDTV |
| Owner: | GMM Grammy (One 31 Co., Ltd.) |
| Country: | Thailand |
| Language: | Thai |
| Area: | Thailand Malaysia (Perlis, Kedah, Perak, Kelantan and Terengganu) Myanmar (areas of Tachileik, Myawaddy, parts of Mawlamyine, and southernmost part of Tanintharyi Region) Cambodia (border areas of Oddar Meanchey, Banteay Meanchey, Pailin, parts of Battambang and Koh Kong provinces) Mekong river areas in Laos (including Vientiane) |
| Headquarters: | GMM Grammy Place, Asok Montri Rd., Watthana, Bangkok, Thailand |
| Sister Channels: | GMM 25 |
| Terr Serv 1: | Digital terrestrial television |
| Terr Chan 1: | Channel 31 (HD) (TV5 MUX2) |
One 31, fully known as Channel One 31 (th|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.[1] [2]
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).
On November 1, 2012, the channel changed its name to GMM One. Its current name, One 31 was adopted on December 2, 2015.[3]