How you set up your TV system is just as important as where you set it up. Hiding the clutter of wires and cables is a big job. In most cases, all the traces of wires can't be hidden. That is when it is time to get creative and have some fun. There are many ways to safely take care of the mess that can make a large difference in a home theatre.
One way to hide wires is to cut a groove in the wall from the TV to the floor. Fit in the wires, then fill with plaster, sand and paint. Or buy cable racetracks. They are square lengths of plastic tubing that easily attaches to the wall. Run your wires down threw the tube to the floor. You can even paint them to match your wall.
Cut and nail a back panel onto the TV stand. Drill a hole in the panel behind the TV and another hole for the shelf with the DVD player and converter. Feed the wires through the holes, and cables are hidden. TV stands have wide supports. Use cable clips to attach the cables to the back of the supports -- and out of sight. Coil up extra cable at the back of the TV.
Many cables can be effectively hidden behind bookshelves and other units. Re-arrange the room a little, if there is a way to hide the cables behind other units in the room. It may even make it more comfortable to watch TV with the new arrangement. Coaxial cable running along the floor can be hidden behind baseboards, if they are carefully removed. If the TV is isolated in the room, the cables will stand out more.
Find or build a box large enough to fit all the excess cables. Cut a hole in the back of it large enough to easily fit the cables through. Paint it to look like a base speaker for the sound system. Place it on the bottom shelf of the TV stand, and run the wires down the back where they can't be seen. Feed the rest of the wires into the box.