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The box has 3 ports. HDMI, power, coax cable ( white cable that screws in). The cable box has to have these!
Sorry, there was a problem. Please try again later.Shannon - I’m sorry to see that you are having difficulties.Have you connected using a 4K HMDI cable and changing your source. If that has been done, and you are still having difficulties, please see below. So that we can better troubleshoot towards a solution, please reach out to Samsung TV Support at: ― Phone: 1-800-SAMSUNG / Available 8 AM - 9 PM EST, Mon - Fri ― LiveChat or Email: https://www.samsung.com/us/support/#contact_us_for_support We look forward to hearing from you. ^cris
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