TV Repair Questions? Ask a TV Technician for Answers ASAP
Hi, I'm Nathan.Sorry to hear that you're having trouble with this but I'll do my best to help you.
there are a few options for this, depending on the look you are going for and budget.
You can simply route extension type cords along the baseboard and tack in place with a nail/staple, or run along/up the wall and cover behind a plastic cord cover (which you can paint to match the wall) or you can actually cut into the drywall/plaster and run the cabling through the wall space, terminating in a wall plate (coax, network, and power outlet) though that is usually left to a professional, it is possible to do some of this yourself. If you can tell me more about what you are going for I can give more details.
Most all tvs are wifi capable to begin with,
so that is an option, but you can use wired as well. It is easiest to just purchase a premade ethernet cable and route that along the floor (or through the wall), then you can just pull it out of the wall behind the tv and plug, or you can terminate it to a jack inside the wall, I'll get you parts info here,
A standard "keystone" type wall plate: http://amzn.to/2hhK51w will take a coupler like this: http://amzn.to/2ihcnJE