Check this out
. You're not alone with Philips/Sony TVs.
It gives a possible fix on down the page. It involves adding a file and deleting some. Same here, no answer
it just turns into a pissing match, but again shows you're not alone.
Doing a Google using 'mac os x philips tv hdmi color' seems like it gave a lot of the same problem. Could probably substitute Sony for Philips.