re: is TCL 55" 4K TV with ROKU built-in complete crap? Its $489 at Sams

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With the extra luminance, images take on a whole new level of detail. Dark scenes become less of a gloom-fest – you’ll be able to pick out far more in the shadows – while the added vigour of bright areas helps them to leap out of the screen. Colours also become richer and more lifelike, with more delicate blends and shifts in tone. Basically, it makes things look more realistic, more impactful and more detailed. And now HDR isn’t confined to still images: it’s on your TV and the cinema screen.

Yes, but it’s a different kind of detail. HDR isn’t about increasing the number of pixels, but about making every pixel that’s already there better. And this means that, while 4K generally requires a large screen size to prove effective, HDR’s advantages are plainly visible on a screen of any size.

Within Hollywood, some TV and filmmakers believe that HDR could be a bigger deal than 4K. Howard Lukk, VP of production technology for Walt Disney Studios, told Variety: “There’s a feeling in Hollywood, and even at the Walt Disney Studios, in order to change over the complete marketplace to a new format, we really need more than just pixels. Adding more dynamic range and more contrast really makes a big difference.”

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