Ok, just when everything with the new Pace Twin Field Trial update was going fine, TV is now completely unwatchable. My signal strength varies between 70 and 80%, yet the picture breaks up and judders ever since the update was installed. Anyone else had this problem? And does anyone know how to cure it? My aerial is the size of England, the reception and picture has always been very good up until now. I have a booster that is working fine, so can not understand why the TV is unwatchable. This effects all channels.