I came from a plasma too, and I notice the bottom right light bleed on my 55". I'm guessing it could show up on any edge-lit, but turning off the smart dimming (or on, can't remember) makes it go away.
I have also noticed that the announcers sound is very low (Comcast). The picture looks fine.
Bob Costas is always on the wrong sides when he appears. I have to turn my glasses upside to see the 3d correctly. Maybe it is just his negativity causing it.