Hello! This started a couple of days ago. I first noticed it while playing a game on my PS5, but the only thing that happened was the screen kind of shuddered up and down. I thought maybe it was the game so I tuned the PS5 off and on again and the issue stopped. The next day I noticed it did the same thing while using my Chromecast and additionally there was a faint white line near the top of the screen that ran the width of the screen. Yesterday (Monday) when I got home from work, the shuddering got worse. It was more rapid and there were some other weird glitches on the screen. Then it completely powered down and turned itself back on. After about 10 seconds of a normal picture it would go through that cycle again. The only thing I could do to stop it was to unplug the TV.

What is going on with this TV? Is this something I can fix, or is it just totally dead?