I have a Bush BTVD91216B LCD TV with Freeview, which is connected via a communal aerial. I have been suffering from pixelation and sound problems and occasionally the colours yellow and orange have a green tint to it. These problems have been occurring everyday for the last five months, whereas I had good reception previously. I have tried new coaxial cables, some of which have made it worse. I've had the wall socket replaced and none of my neighbours appear to be having problems. Can anyone help?