This model is produced in Hong Kong. Apparently, the whole series is like that. Either because of the low culture of production, or because of violations of the technical process. The Samsung website does not allow reviews. Check if possible in the store. Or right after purchase. Contact the store and authorized centers. According to the ISO13406-2 standard (in 2022 - GOST R 52324-2022), nothing like this should be for this class of TVs.
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