Sending 1 digital video feed to 2 TV's simultaneously

I have a complicated wiring situation that I need some help figuring out a solution to. I am trying to get a video loop from a single USB 3.0 flash drive stick to run simultaneously on 2 UHD smart TV's in the front of my store. I'm not sure if I should try to use the existing cabling that is in place, or if I can accomplish this wirelessly. I have included a link to a drawing I made of how the wiring would have to be run based on what is pre-existing in the store.

What is currently here is 2 coaxial outlets in the front of the store with approximately 100 feet of coax running from each outlet to the back of the store. The TV's do not have a coaxial port, so I know I have to convert to HDMI to connect to the TV's. The rest of it is up for discussion. The wired route seems complicated with all of the splitters and converters, and I'm afraid I will lose a lot of quality in the video feed that way. I would much rather run the video loop wirelessly, but I'm not sure how to do that so the video plays on both TV's simultaneously. Any help would be greatly appreciated.

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Clarification Request
So how about a HDMI to COAX in HD?
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BTW. Another person

Got upset with it being overly complicated and decided to just let the video play with 2 USB sticks. There was no need to have them in sync after all. They got it done for cheap after they figured out it didn't need to sync.

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Clarification Request
(NT) NT - are there no antenna ports on these?
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Clarification Request
I wouldn't bother

Too much hassle, and results not guaranteed with *ANY* of the converters, even expensive ones IME and jaded O Wink

My solution? Cheaper and quicker. Just copy the file to a second flash drive and utilize that on the 2nd HDTV. Sync the playback. It should only take a few practice runs to get them to start nearly at the same time if not precisely. Done.

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