RCA Set with an Issue

[Console User]

Thanks All. I think I found the source of my problem. I changed out my RCA Cables for a better heavier set. Also, on back of the TV I was using the 300ohm transformer for adapting the 75 ohm coaxial. I plugged the coaxial cable directly to the 75ohm connector on the box of the TV. The picture is like 100% better and no annoying buzz from the audio. All good now except for the small discoloration patch in the Top right corner of the screen. It seems to me it is getting less and less noticeable as I use the set more and more. It had been in storage for sometime.

Rustin