Get a hole cutter 2~3" drill holes in the back of the cabnet(looks better). Look at your TV and find out where the air goes in and out. At the back of the cabnet near the shelf where the TV sits drill a couple of holes, at the the top of the cabnet above the lower holes drill 2 or 3 more hloes. This will alow cool air in at the bottom and hot air out at the top. John