Certain channels are now not coming through (No signal received message). Sci-fi, Discovery, Channel 5 and all the channels on the same transponder. According to the Sky bloke my LNB is fudged. Can they be repaired or is it a replace job? I live in Telford. Any decent local places? Despite already having a TiVo, I'm thinking about an upgrade to Sky+ if the cost of replacement is approaching £100 since the Sky+ installation will include a quad LNB. Your thoughts appreciated.