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You can find information about HDR and how it effects your TV viewing here: http://www.lg.com/us/experience-tvs/hdr We are not sure what you mean by "built in technology so that a firestick is not needed". We would love to help you with your question. Please take a moment, at your convenience, to contact us directly via Twitter @LGUSSupport or Facebook www.Facebook.com/LGSupportUSA ^CP
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