RTA 5 or RTA 5 HD (Full Name : Royal Thai Army Radio and Television Station; also known as Thai TV5, Channel 5, Channel 5 HD or simply TV5) is a Thai free-to-air public television network owned by the Royal Thai Army, launched on 25 January 1958.
Launched on 25 January 1958, as HSA-TV Channel 7, it was led by Tawon Chueyprasit, who was a colonel at the Signals Corps, but managed the station in the afternoon. This television station transitioned from broadcasting in black-and-white to a color television as Channel 5 in 1974 dubbing themselves "RTA 5". The Army set up the station in an attempt to destabilize the ruling Phibul government. RTA 5 is the second oldest television station in Thailand, owned and operated by the Royal Thai Army, and as such features, among others, programming devoted to the Royal Thai Armed Forces.
RTA 5 completely ceased its analog broadcast on 21 June 2018 at 9:30am as part of its digital switchover. It was initially scheduled for 16 June but was supposed to be postponed to the end of the 2018 FIFA World Cup.
On 25 November 2021, RTA 5 moved its LCN from 1 to 5.