The launch was the result of a joint Japan-Taiwan study group.

[1] On October 12, 2020, TTV Main Channel converted its terrestrial feed to high-definition.

[2] From the start of its television broadcasts in 1962 until the 1970s, TTV used a monochrome "bullseye"-style test card.

TTV HD was launched on July 21, 2012, simulcasting the 2012 Summer Olympics in high-definition format.

After coverage ended, it began simulcasting with TTV Main Channel.