"This is the best value for getting two low voltage brackets and wall plates. you can literally cut a hole in your wall behind your TV and place the black bracket in, the screw on the plate and put your wires through the wall."
"This box is installed in your wall behind your TV. It allows you to have outlets and openings for HDMI and component Video. This is only required if you want a more professional appeal than the LV bracket and plate."