All LED displays have some level of off uniformity. I would say that if you have to sit off axis to see it, then keep it. It's a waste of time to find a perfect panel. They don't exist.Well exchanged the tv at Costco. This one is the same week made (40). The banding is better. But still there unfortunately. Don’t notice it at all watching regular tv. But it is evident watching hockey and watching some olympics like cross country with the white background. Only notice it also sitting off axis. Not head on. Not sure if there are anymore tips to minimize it. I don’t mind continuing to exchange panels at Costco but I guess my question is... is there a perfect panel or am I going to always have some amount?