It depends on the signal. Every TV has a maximum resolution. There are some expensive televisions that handle 1920 x 1080 progressive. But such a grand television wouldn't be much use since HDTV broadcasts are either 1080i (1920 x 540) or 720p (1280 x 720). It is unknown when 1080p broadcasts will start. HD-DVDs will support full 1920 x 1080 resolution so I guess such televisions will be great for HD-DVDs.