I recently got a Sony x90j 50in TV. Right out of the box, it has a row, one pixel thick, that swaps between the correct output and full white. It's two pixels from the bottom of the screen. It swaps between normal and white every 1.7 seconds like clockwork. It happens on the home screen as well. So it's not an input problem. If it was solid white nonstop, I'd think it was a bad panel, but flashing between white and correct colors is confusing me. Any thoughts?