How to hide wires going to a wall mounted TV

My wife has wanted me to hide the wires going to the TV for some time now. This is what I started with, a TV with lots of wires going to it.

This is my secret weapon, electrical pass through boxes.  These and a hand held hole saw did the trick.

I ran into problems right from the start, electrical wires that were in the way.  They had to be moved to the right slightly.  They also made cutting the hole a bit tricky.

Then there was a second problem, there is a 2x4 going cross wise in the wall.  I cut it off on the right side and then cut off the nails.

Last was to hide the cable and internet cables behind the baseboard.  I cut a grove in the sheet rock and a grove in the baseboard.

Time to patch up the hole where I had cut through the cross wise 2x4.  A piece of thin plywood like luan works for the backing.

This is the almost finished product.  Now to repaint the wall....