First go to system preferences>displays, display tab and try different resolutions to see what looks best 1024X768 (probably 1280X800) and up. then go to color, unclick show profiles for this display (that is the built in display on your mac) you want to adjust the settings on your tv. Open color profile click in the display profile, select Color LCD for start click calibrate, then try other profile settings following the same procedure, as this seems to be a European model and I was not able to find any info in english. Please be sure to read your TV manual carefully. So I gave you some starting points. Hope this helps.