Recently purchased a LG Nanocell 85 series (yes I know how y'all feel about this one) and it's been displaying this dark bar on every input after a week or so. It
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49NANO85UNA in by LG in De Smet, SD - LG NanoCell 85 Series 2020 49 inch Class 4K Smart UHD NanoCell TV w/ AI ThinQ® (48.5'' Diag)