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You don’t. HDR has to do with photography, and has to do with automatically taking multiple exposures with different f-stops to get a better photo. Ultra HD, which you probably meant, is also called 4K, UHD and UHDTV. It means that your TV set is capable of showing 4K tv, which is a lot higher resolution than a standard TV, therefore a better picture. You don’t turn it on, though. Either your TV station broadcasts a 4K signal, or it doesn’t (I don’t think ANY station is currently broadcasting in 4K). However, if you have a 4K DVD player AND you buy a 4K DVD movie and use your TV set to view it, your TV will automatically show it with that resolution.
Sorry, there was a problem. Please try again later.The show or movie must be shot in 4K or HDR. Broadcast channels do not have shows that meet that requirement. Amazon Prime and Netflix offer plenty of shows and movies that compatible.
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