The second method is a little more involved but still pretty damn simple. Gather the cables together and close the box to hide them. Hiding Cord On Wall Mount Diy Mantel Home Fireplace Home Wide Selection of Industrial Data Communications In Stock at Allied. How to hide tv cables in a solid wall . If you want to hide the TV cables that feed up to the TV youre going to need to chase away the plaster and brickwork. Buy Today Get Your Order Fast. The usual trick is to chase the wall which is chisel just a fancier name and then a thin metal covering lid goes ontop to add a bit of protection. Place a decorative box on a shelf just under the cables. This will involve filling over the hold sanding and possibly painting but the end result is well worth it. Youll use on-wall cable raceways which means no cutting into your wall but youll still be able to see the cable channels. It wasnt in great condition so we slabbed over all the walls with plasterboard. Heres how you can...