So, I just picked up a new TCL 4K tv and thought all was well until I got closer to the screen and detected a stuck pixel on the bottom left. It is a lone pixel, and once I back away from the television, I can't see it. To be honest, I have to be <1 foot in front of the TV to barely make it out. Is this cause for concern? Could it spread? This is already my second television, because I wasn't happy with the other one (different brand) I purchased and had to return it. I'd hate to have to pack this one up and return it too! If it won't spread or get worse, I don't see it causing any harm due to the fact I can't even see it unless I'm right on top of it... Any thoughts or opinions on this one?