One thing to note about the new 1080p (or 1080i, for that matter) fixed resolution displays that folks are purchasing: Make sure you aren't feeding them an upscaled picture! For example, many DVD players will upscale the 480i content on DVDs to 720p, which looks great on 720p devices. However, if you send that upscaled 720p image to a 1080 display, the 1080 display needs to scale it again from 720p up to 1080. This double scaling actually results in worse picture quality than if you simply let the display scale the 480i content once straight to 1080.
Of course, this caution doesn't apply to variable resolution devices (CRT direct-view or projection), but since most folks are buying the fixed resolution technologies like LCD, plasma, and DLP, they should be aware of the issue.
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