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Hello, MrzzAdubz, As long as the cable box has an HDMI output and the TV and HDMI input, it should work. Eduardo L - Insignia Support https://www.insigniaproducts.com/contact-us
Sorry, there was a problem. Please try again later.That's a little confusing. The purpose of a cable box is a Box in it's self. However if you have cable tv and your Cable is able to connect to your tv system via wifi or some other screaming ability then I don't think a HDMI cable is necessary. I would check with your cable supply for more tech/troubleshoot questions like that.
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