NVIDIA Corporation 77Chapter 6Configuring HDTVHDTV Formats• 480i/480p ‐ resolution of 720 x 480 interlaced/ resolution of 720 x 480 progressive• 576i/576p – resolution of 720 x 576 interlaced/ resolution of 720 x 576 progressive• 720p – resolution of 1280 x 720 progressive• 1080i/1080p – resolution of 1920 x 1080 interlaced/resolution of 1920 x 1080progressiveIf the selected resolution lines are smaller than the selected HDTV format, then blackborders will be visible, but if the selected resolution lines are more than the selectedHDTV format, the desktop should start panning. To select these formats, see “UsingHDTV Formats” on page 81.If you use plasma displays with burn‐in display issues, you can use the Videoborder option on the TV Output page to display grey instead of black for the borderswhen the selected resolution is smaller than the selected native HDTV format. See“Device Adjustments — TV Output” on page 69.Optimizing HDTV ViewingThe NVIDIA driver provides three user‐correction methods — “Underscan”,“Overscan Shift”, and Overscan Shift — to solve the problem of the Windowsdesktop overscanned and cutting off the Windows taskbar Start button.Table 6.3 summarizes the various correction methods and reasons for use.