The overscan and sharpness settings are actually more straightforward than they sound. Overscanning is when the displayed image is slightly bigger than the TV screen, losing details from the edges, almost like it’s zoomed in. The sharpness control lets you ‘focus’ the image so that objects are clear and well-defined, and the text is readable.
Open the TV menu and find the aspect ratio settings, and choose something like ‘Screen Fit’, ‘Full Pixel’ or ‘Just Scan’. Every TV is slightly different, so check the user manual if you can’t find it.
The numbers on the text pattern show the percentage overscan, with hatching at the outside edge to help with fine adjustments.
Alter the overscan setting, shrinking the test pattern so that it fits the screen perfectly, you should just be able to see the hatching at the outside edges - shown in the image above.
Picture sharpness helps you tell objects apart on screen, but if it’s set too high, it can make items stand out and look hard-edged, instead of looking natural.
Use the same pattern to adjust the picture sharpness.
When you’ve found Sharpness in the picture settings, turn it all the way down.
Increase the sharpness until fuzzy edges appear on the pattern’s lines and text.
Then slowly bring it back down until the fuzziness goes away.
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