I have a Sony Wega TV and lately, I've been noticing these curved green lines towards the top of the screen. The are green and curve downward. You can only see them when the screen is black of course. They kind of look like the lines you get if you place an un-magnetically shielded speaker near it. I currently have a set of Infiniti Entra Point Five satellites on either side (about a foot away from the TV on either side) and the center channel sits on top of the TV. However, I know that all these speakers are magnetically shielded. Just to check, I removed the center channel and placed it elsewhere, but the lines are still there. Can anyone help with this? Thanks!