Fresnel Screen (projection TV) - Helps balance out the light of the image across the screen. Without this screen, there would only be a centre screen bright spot. This screen receives the initial light image from the mirror and is made up of grooves, not unlike the grooves on an original LP record, in a circular pattern.
OTA - (over the air) - There are about 1500 OTA (terrestrial) TV stations in the U.S.
Artifact - Unwanted visual anomalies or defects generated by an input or output device, or by a software operation, that degrade image quality.
Artificial Intelligence Sound Level Control - Controls the volume level automatically to prevent wide variations in volume among different TV channels and types of programming.
File Format - The particular arrangement of digital information that is saved from an application program. The method of arrangement or storage is unique for any particular application program, but most applications can import and export standardized graphic and text file formats, such as TIFF, GIF, and EPS graphics; or RTF or ASCII text.
4 - 3 - Aspect ratio of traditional NTSC TV screens, with 4 unit width by 3 unit height.
AMP - A measurement for electrical current.
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