Channel 9 MCOT HD

1955–1974	1974–1977	1977–2002	2002, 2013–2015
2003–2012	2014	2014–2015	2015–present

Thai Television Channel 4

1955–1974

Station ID with HST-TV calls (1970)

The channel was originally launched as Channel 4 Bang Khum Phron (ช่อง 4 บางขุนพรหม) with test transmissions beginning on 6 September 1954 and formal broadcasts on 24 June 1955. The then-new channel operated under the management of the Thai Television Company (founded in 1952), launching daily broadcasts in 1957.

Thai Color Television Channel 9

1974–1977

Outlined variant (1976-1983)

In 1974, the former 525-line monochrome station was deactivated, from now on, the channel started broadcasting on channel 9 in the PAL 625-line standard. In February 1977, then-Prime Minister Thanin Kraivichian has resolve to dissolute Thai Television Company, cause of the reporting October 6 Massacre. but Channel 9 is still operated until the establish of MCOT In March 1977.

Thai Color Television Channel 9 MCOT

1977–1984

Channel 9 still using the 1974 logo, but the formation of MCOT in 1977, they just add the MCOT text under the logo.

1984–2002

Variant with text

Yellow border variant

Yellow border variant with text

Outlined variant (1977-1989)

Modernine TV

2002–2012

2013–2015

MCOT HD

2014

This logo was used during digital tests on the channel from April to 25 December 2014.

2014–2015

3D variant

MCOT HD Variety (unused)

Channel 9 MCOT HD

2015–present

Version with number (2 December 2015 – 30 April 2017)

Black and white variant (13 October 2016 – 21 January 2017)

3D variant (1 May 2017 – 28 September 2018)

3D variant with number. (1 May 2017 – 28 September 2018)

3D black and white variant (1-19 October 2017)

Gold variant (1-29 October 2017)

3D variant (1 November 2017-31 december 2019)

3D variant with number and website address (29 September 2018 – 31 December 2019)

3D variant with number. (2018–Present)