Question Smart TV limited by just one hdmi cable access

Sep 1, 2020
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My old 1080p wall mounted Samsung TV had just one hdmi cable and power cable running to it from in the wall with a smart box in a cabinet below for all aerial and other hdmi connections. Now I have a new Samsung 4K smart TV but can only access it using the existing single hdmi cable and power supply. Do you have any suggestions for enabling me to use my aerial connection and other hdmi sources without having to put more cables through the wall which is of course a big job.
Presumably I need some box in the cabinet which has aerial and hdmi inputs and output just to hdmi. But what???

Thanks!
 
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