Hi, I've just moved into a new house and I'm trying to get freeview (or hd better) working. There is a socket on wall with 2 x rf female sockets with white plastic bits around (isolated?). I plug standard rf male into left one and freeview finds loads of channels but really bad pic on all but bbc channels. I plug into right one and get nothing. As the wall socket is female I have to plug other end of wire into a male to male adaptor before into tv. Am I doing something wrong? Is this plug meant for sky-as why would there be 2 sockets? Or is my roof arial faulty? Many thanks see pics for info.