4k is only going to make a difference if your TV is 4k compatible.
I find that most campground cable is bad or very bad. I use OTA and stream off a Windows phone when not at our home base.
You could try this, save you the trouble of running cables thru your basement.
HDMI extender over coax. plus a couple of these:
Bnc to RCA connectorsPick one section of your component cable, like the green at both ends. If its a decent component cable it is 75 ohms the same as coax cable.
If you plan to run an HDMI cable for 3d or 4k compatibility just remember that 25 feet is the magic number anything longer you will need to do what Winnebago does, run cat 5e (cat 6 is a lot more expensive) and use HDMI over Ethernet convertors. Ethernet twisted pair is a lot smaller than HDMI and you can run the cable and terminate it afterwards. Saves making big holes in your floor.
HDMI over Ethernet extender (4k compatible)