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.
http://i.imgur.com/gE3cj0Z.jpg

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.