While I was putting in my new speakers, directly above one of the speakers were the antenna connections... Not one of them was tight... there were three cables and all were barely connected... on top of that, they were all sitting with the metal connection ends touching each other... although that maybe wouldn't matter if the connections were tight, I tightened them all, then wrapped all with electrical tape and separated them...What I got was that both the TV and the Radio both had significant improvements in the stations and reception...even AM on the radio...which normally I wasn't getting much if any stations...
The TV would normally scan about 16 or 18 OTA channels with two or three being pixelated where it's parked... it now scans 28 channels with no pixilation and only two of those are a bit scrambled as if weak or in fringe areas ...
All of the connections on the TV and the Key TV connections behind the tv were all tight as were the connections at the outside KeyTV cable/satellite board.. sorry to get long winded...