Vizio RS65-B2

It's a few years old, now, but this mid-range 4K TV from Vizio comes with a wealth of incredible features at a reasonable price.
Pros and Cons
Pros
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Includes a surround-sound system
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HDR and Dolby Vision support
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Quantum-dot technology
Cons
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Lackluster smart platform
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Not the best at upscaling older (sub-HD) content