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720p (720 lines progressive) is a progressive HD signal format with 720 horizontal lines/1280 columns and an aspect ratio (AR) of 16:9, normally known as widescreen HD (1.78:1). All major HD broadcasting standards (such as SMPTE 292M ) include a 720p format, which has a resolution of 1280×720.
High-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite , cable and IPTV .
Year Physical media formats Recording formats 1975 Betamax: A Betamax tape Analog video format developed by Sony. Inspired the later Betacam professional format.: 1976 VHS: Video Home System Analog video recording on tape cassettes.
Non-cinematic HDTV video recordings intended for broadcast are typically recorded either in 720p or 1080i format as determined by the broadcaster. 720p is commonly used for Internet distribution of high-definition video, because most computer monitors operate in progressive-scan mode. 720p also imposes less strenuous storage and decoding ...
Wide Screen Movies Magazine, Vol. 1, 2002. Retrieved on 2006-12-01. Herbert, Stephen. Museum of the Moving Image, date unknown. Retrieved on 2006-12-01. Horak, Jan-Christopher. Introduction to Film Gauges. UCLA Film and Television Archive, 2000. Retrieved on 2006-12-01. Internet Movie Database Incorporated. Internet Movie Database, 1990–2006 ...
The HD or 720p resolution of 1280 × 720 pixels stems from high-definition television (HDTV), where it originally used 50 or 60 frames per second. With its 16:9 aspect ratio, it is exactly 2 times the width and 1 + 1 / 2 times the height of 4:3 VGA ( 640 × 480 ), which shares its aspect ratio and 480 line count with NTSC .
Harlow : first feature film shot on video at the lower range of modern high definition. It used Electronovision, an American film production process based on the French 819 lines TV system, which could display 737 active lines on screen, so slightly above 720p (albeit as a B&W, interlaced, 4/3 format). Videotape was transferred to 35 mm film ...
720p is used more for Internet distribution of high-definition video, because computer monitors progressively scan; 720p video has lower storage-decoding requirements than either the 1080i or the 1080p. This is also the medium for high-definition broadcasts around the world and 1080p is used for Blu-ray movies.