The socket for the cable TV is on one side of the room and the electric socket on the other side. The fireplace (non functional, purely decorative) is on the wall in between. 
Currently the TV cable goes across the mantel but it looks awful. It's one of those cables that's quite stiff too so it doesn't bend down at the corners of the fireplace surround. But keeping it on the floor is ugly too because it's a white cable and black fireplace.
Moving the TV is not possible due to the layout of the room.
Any ideas?