DLP's are immune, but in theory the magnets could distort the image from the guns in RPTV's - misconvergence, etc....but the speakers will be 3 feet or so above the guts of the TV so there shouldn't be a problem there. Even when placed beside the guns, I don't think the magnets in the woofers are nearly big enough to cause problem...
Now the magnet in the Quatro might cause some issues...