Question What is this line across my TV and can I fix it?

Oct 10, 2021
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Can anyone diagnose and let me know if its fixable?

This is a Sharp 40inch LED TV, currently used as a desktop monitor (as shown in video) but the issue is the same on the picture across TV channels and other HDMI devices. There is a permanent horizontal line across the top of the screen and depending on movement below this block the colour changes within the block. The picture is not completely missing though.

Video of issue:
https://streamable.com/i5qag5

Thanks for any advice!
 

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