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LG UM7400 review (43UM7400, 49UM7400, 55UM7400): The new LG UN7400 is now £280 cheaper | Expert Reviews
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![HDR or 5.1??? I recently got a new TV, lg 55um7400. But my old amp rxv477 doesn't do HDR passthrough. If I try to use arc to send signal from pc to HDR or 5.1??? I recently got a new TV, lg 55um7400. But my old amp rxv477 doesn't do HDR passthrough. If I try to use arc to send signal from pc to](https://preview.redd.it/8wzfb7wa0ic41.jpg?auto=webp&s=4a428ed2bebaa5681428fe425197c7419495307a)
HDR or 5.1??? I recently got a new TV, lg 55um7400. But my old amp rxv477 doesn't do HDR passthrough. If I try to use arc to send signal from pc to
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