Here are some 50-inch TVs with their respective screen resolutions and brands:
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Sony Bravia 50 inches 4K Ultra HD LED Smart TV (KD-50X75): Screen resolution is 3840 x 2160 pixels (4K Ultra HD).
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LG 50 inches 4K Ultra HD LED Smart TV (50UN7340PTF): Screen resolution is 3840 x 2160 pixels (4K Ultra HD).
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Samsung 50 inches 4K Ultra HD LED Smart TV (UA50AU7700KXXL): Screen resolution is 3840 x 2160 pixels (4K Ultra HD).
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Power Guard 50 inches 4K Ultra HD LED Smart TV (PG50F4K): Screen resolution is 3840 x 2160 pixels (4K Ultra HD).
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Panasonic 50 inches Full HD LED TV (TH-50F200DX): Screen resolution is 1920 x 1080 pixels (Full HD).
Please note that there may be variations in the specific model numbers and features based on the region and availability.