I have an open-concept living room, dining room & kitchen. What shape and size of rug is recommended considering the fireplace is in the corner of the living room? There is a 7-foot wall to the right of the fireplace and on the other side, the wall between the fireplace and a window is only about 2 feet. The television presently sits on a low table against the 7 foot wall but I find that it takes away from the fireplace being the focal point. Should I build some kind of wall unit to hide the televison set and if so, how tall can it be? The walls are 9 feet high. Will it look lobsided if there is no built-in on the other side? Any suggestions or alternative recommendations would be appreciated.