Seems like I have a similar issue... On Vizio LCD 32HDTV I get lots of yellow/lime colors that I can't adjust out. Used Avia calibration, etc.
Here's what I've noticed:
when connecting DVD player thru AV1 (or other non-HD connections) everything is great !
when connecting same DVD player to an HD input - yellow /greenish cast.
I've had the set for 3 weeks. On the second day, the screen went black & in lower left quadrant of screen, a green & white stripe came up; also...