So I've had a Sony X7007f 55 inch TV for 3 months now. And just two days ago I noticed black spots on my TV. I tried wiping it but it seems that it's inside the TV and not on the surface of the screen. I'm thinking it's an internal crack but it could also be dead pixels. I've never hit the TV, and I live alone so there's no way it could have been physical impact. Has anyone had any experience with this? If so, do you think sony will cover this with warranty? Here are pictures below.