Here's the article that lists the do's and dont's.
From that list, the things that I could've done wrong, that I can think of, are-
-Using a shielded cable.
-Possibly stretched the cable.
-Running them parallel to the power lines is affecting them (I was told by a customer support representative of a well known and well respected cable manufacturer that this wouldn't be an issue).
Any suggestions?
Just thinking of all the possibilities before I have to rally some troops (not easy) to take the TV off the wall. I want to know everything that should be tested, while it is.
The only reasonable argument for owning a gun is to protect yourself from the police.