Umm. I have NO idea how to go about doing what you suggest. Can you come over for dinner??? and bring your family. And your tools. We can watch TV after dinner (after you work on it that is!!!)
I wonder if that could be it.
LOL
I don’t expect you to open up the tv it’s just sad that the 2 knobs that will fix most probs with a tv are hidded right behind the back cover. Seems to me they are hidden to give us a reason to throw it out and buy a new one.