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![Titanic [Sainsbury's Exclusive With Additional Disc Of A Night To Remember] - Linus Roache](/media/ProductImage/image88x88/ProductImage-7220099.jpg "Titanic [Sainsbury's Exclusive With Additional Disc Of A Night To Remember] - Linus Roache")
![The Tudors - Seasons 1-4 Complete [Repackaged] - Jonathan Rhys Meyers](/media/ProductImage/image88x88/ProductImage-7099709.jpg "The Tudors - Seasons 1-4 Complete [Repackaged] - Jonathan Rhys Meyers")
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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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