Those who want the best picture quality need to change their TV's settings to accommodate changing video feeds. When watching digital TV, video quality can vary wildly. Some video content is filmed or trimmed to a smaller vertical resolution than 1080 pixels-or it's interlaced, rather than progressively scanned-but it is still considered HD. The FCC defines high-definition (HD) quality video as 720p, 1080p, and 1080i, and all modern TVs carry support for at least 720p resolution, with many supporting 1080p. The video below offers a summary of the differences between 1080p and 720p in terms of picture quality. Image smoothness is affected by many other factors, including how big a TV is, how close one sits to it, what DVD player is in use, what a TV's refresh rate is or what its aspect ratio is set to, and even what the frame rate of the video or game content is. Not everything comes down to resolution, however. Comparing the visual quality of different resolutions and standards.
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