Thailand television broadcasting started broadcasting on 24 June 1955. Color telecasts (PAL, system B 625 lines) were started in 1969. Full-time colour transmissions were launched in 1975. There are currently 6 free-to-air television stations in Thailand. Subscription providers are available, with differences in the number of channels, capabilities such as the programme guide (EPG), video on demand (VOD), high-definition (HD), interactive television via the red button, and coverage across Thailand. Set-top boxes are generally used to receive these services. Households viewing TV from the internet are not tracked by the Thai government.
In 2005, the Ministry of Information announced their plan to digitalise nationwide free-to-air TV broadcasts led by MCOT. Trial broadcasts were undertaken, involving one thousand households in Bangkok from December 2000 till May 2001. In December 2013, NBTC set up series of auction for DTTV. Four types of licenses are offered as followed: High-Def. channel license, Standard-Def. channel license, News channel license and Youth/Family channel license. All the major operators and content owners in the industry won the bid for new licenses e.g. BEC World, Bangkok Broadcasting and TV, GMM Grammy, ThaiRath Newspaper, Nation Multimedia Group, True Visions etc. According to the license condition, DTTV services launched since April 2014.