Every TV or any electronic device may have technical or manufacturing defect or any other issue, but it happens to few people and you don't know whether your TV will have any problem or not, in most cases, it won't. But, when you're buying an OLED you do know that if you use this TV in a particular manner it will burn in (not talking about abuse, just significantly more usage than an average user). Even the manufacturers know this drawback and thats why they don't cover it under warranty even for the 1st year. They say its a problem of usage pattern, which is ridiculous.