NTSC

From GamerWiki

National Television System Committee was developed in the United States and was the world's first colour transmission system in 1954. Note that NTSC itself is only the system of colour transmission and does not itself describe the full specification for sending televisual signals. NTSC is based on the RS170(A) synchronisation and timing specification.

Only one standard exists: NTSC-M, however, NTSC in Japan is often termed NTSC-J to denote the different region for use in DVD technologies.

In 1967, colour television in Europe was introduced in the forms of PAL and SECAM, both similar technologies which improved on the signal of NTSC to avoid colour distortion. NTSC had been dubbed "Never Twice the Same Colour" due to the the colour distortion by then.

Standard	Line/Field	Horizontal Frequency	Veritical Frequency	Colour Sub-Carrier Frequency	Blanking Setup	Video Bandwidth	Audio Carrier	Channel Bandwidth
NTSC-M	525/60	15.734 KHz	59.940 Hz	3.579545 MHz	7.5 IRE	4.2 MHz	4.5 MHz	6.0 MHz

Specifications from [DataPro International, Inc.] and [TenLab], but can be found in many other locations.