I recently noticed a vertical line that faintly shows when watching my TV. It is always there. It's really faint when looking at a picture, so I put it on a different HDMI screen so you can see it better. I've noticed there's other lines as well that are not noticeable when watching TV. Any idea what it is? I've tried reseating all the hdmi as well as the power cord. I've also mirrored something from my phone to see if it's my cable, but still there. It's livable right now, since only that darker middle one is really noticeable. But even that still kind of faint. But worried it's going to get worse?