Thanks for the replies. The 42″ Pana worked out well enough on the set. It was used mainly to run graphics. We used 1/60 shutter speed to eliminate flickering instead of regular 1/50(PAL country). Color balance was towards blue in a tungsten lid studio. The tv gives 3 options for color balance: normal, cool, and warm. Not very accurate adjustments but good enough again.
Brightens and contrast adjustments were hardly strong enough to match the screen with studio lighting. One should be prepared to run tests before actual shootings and be ready to adjust the brightens and contrast of the footage it self in the edit or where ever it is coming from.
The production was shot on SD and the picture from tv looked very sharp on cameras.