When we purchased our home in 2010 we decided to start with AT&T's U-verse for phone, video and data. That allowed us to go ethernet across the board and no longer rely on coax cable for cable tv signal delivery.
I built a communications cubby in our hallway, and I had our electrician that we were having do some renovation work to the house rough-in all of my Cat6 drops, run the cable, remove all of the jumbled coax and old telephone cables and add an electrical outlet on its own circuit to my telecommunications cubby.
I've had a friend ask for some advice and what I used so I detailed here on listmania which is part of Amazon.
We have a drop of 4 Cat6 cables in every room including a kitchen cabinet for an under-cabinet tv. The cubby is a little busy now, but it was worth every penny. My only regret is I didn't have the foresight to have the electrician do a drop in the garage at my workbench. But at least wireless reaches.