The television industry in Taiwan developed later compared to Europe and the United States.
The main channels started to use SDTV format with analog signal which had been carried out for decades.
Taiwan's first HDTV channel HiHD (which belonged to PTS) started on February 1, 2008 with test transmissions throughout the country, mainly in the northern region.
[1] National Communications Commission terminated analog terrestrial television on June 30, 2012.
By that time the main networks CTV, TTV, CTS, FTV and PTS fully transitioned to digital and with that ended 50 years of the analog signal in the country in the free-to-air frequency.