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Hello Cat, you can hook up the cable box with a coaxial cable (screws in the antenna jack), RCA (red, white and yellow), and HDMI which would be the best picture quality option for you. Omar S. - Insignia Support.
Sorry, there was a problem. Please try again later.If your DIRECTV service is HD then yes you will need to purchase an HDMI cable. If you have standard service then you can hook it up with rca cables.
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