reply to blu87
Re: Signal problem again, I think If those levels you are posting are the levels that a particular channel is seeing, you have a major signal issue. Ideally, you would be reading between -5 and +5dBmv at the TV.
If you have cables laying on your roof that have not been touched for the past 22 years, that could be a problem. Do you have any splitters on the roof? The easy would be to replace any splitter's that you may have on the roof to begin with. Otherwise, set up a service call.