NTSC

NTSC is an analog television broadcast standard developed in the United States. Its specifications cover video timing, scanning, and a color system designed to work with existing monochrome broadcasts.

Composite video: An analog video signal that combines image brightness, color information, and synchronization. NTSC color broadcasts encode these components together in a composite signal.
Federal Communications Commission: The United States agency that regulates interstate communications, including broadcast television. The FCC approved the color television standard that became known as NTSC.
Analog television: Television that represents picture and sound information through continuously varying electrical signals. NTSC is a broadcast standard for analog television transmission.
PAL: An analog color television system using phase alternation to reduce color errors between lines. PAL uses a different color-encoding method and generally different frame timing.
Chrominance: The color information in a video signal, distinct from its brightness information. NTSC encodes color using chrominance carried alongside luminance.
National Television System Committee: A United States industry committee that developed television standards, including the color system adopted in 1953. The committee's initials supplied the name of the broadcast standard.
Television receiver: An electronic device that receives and displays television signals. Receivers designed for NTSC decode its timing and color encoding.
SECAM: An analog color television system that transmits color-difference signals sequentially on alternate lines. SECAM differs from NTSC in how it encodes and transmits color.
Luminance: A measure of image brightness that approximates human visual sensitivity to light. NTSC preserves a monochrome-compatible luminance signal alongside color information.
CBS color television system: An early field-sequential color television system developed by CBS and approved for broadcasts in 1950. The FCC first approved this incompatible alternative before adopting NTSC color.

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