You'll need an HDMI cable from the cable box to the TV. My antenna uses a coax connector, so I connect it to the input for that on the TV. If the cable goes out, I can at least get the local channels by selecting the input via the remote.
Good luck.
How do I hook up cable TV and a TV antennae to receive over the air broadcasts to the same TV? I can choose from the TV menu which input I want.

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