I have a fairly new Samsung tv. The picture is fine when I watch tv. I use an Amazon fire stick to watch Netflix, Amazon and then there's a yellowish, greenish line at the bottom of the screen that comes and goes. I tried playing with the picture settings but nothing's changed. Also, couldn't find anything on the Amazon web site or google. Can anyone offer some help on this ?
Try unplugging it from its current input and checking it in another. If the same thing is happening it's likely a picture sizing issue that should be easily change in the settings. Or test another devise in the input that's giving you problems.
Did it work?