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Tommy, The quick start guide included with your TV has information on using your cable box. If you cannot locate it, find a soft copy here: https://www.hisense-usa.com/support/models/43R7E_4k-uhd-hisense-roku-tv-with-hdr-42-5-diag and some more info here: https://www.hisense-usa.com/support/faq/tvs/r7e-series
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