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![Arthur Christmas [+Ultraviolet] - Hugh Laurie](/media/ProductImage/image88x88/ProductImage-7427974.jpg "Arthur Christmas [+Ultraviolet] - Hugh Laurie")
![Wrath Of The Titans Double Pack [3D] - Sam Worthington](/media/ProductImage/image88x88/ProductImage-7463797.jpg "Wrath Of The Titans Double Pack [3D] - Sam Worthington")
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Standard Definition Standard-definition television (SDTV) is a television system that uses a resolution that is not considered to be either high-definition television (HDTV 720p and 1080p) or enhanced-definition television (EDTV 480p). The two common SDTV signal types are 576i, with 576 interlaced lines of resolution, derived from the European-developed PAL and SECAM systems; and 480i based on the American National Television System Committee NTSC system.
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High Definition HD video has higher resolution than SD video, which results in a sharper picture. Typical HD display resolution will be 1,280×720 pixels (720p) or 1,920×1,080 pixels (1080i/1080p).
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