GTX 580 graphics card and a calibrated TV

I have a Samsung 55" samsung LED 240hz 3D tv (un55c8000) connected to my HTPC, which has a MSI N580G TX. I am not sure whether to overclock the cpu, the graphics card or both. The TV has already been professionally calibrated, and now I am confused on whether I need to calibrate/adjust the user profiles on the nvidia control panel. I use windows media center as my cable box with the Ceton corp infinitv4 and it works great, but when I watch tv on it I can defenetely tell that there needs to be some sort of color adjustment. I"m so confused on what to do from here and how to setup the profiles for the graphics card, the overclocking and the setup for the media center. I have been scouring from forum to forum looking and I have not been able to find anything. Can anyone point me in the right direction or give me some information/knowledge? Thx


MSI 870S-G54 motherboard
AMD Phenom II 955 Black Edition
Adata (2x4) 8G 1800 DDR3 Ram
Western Digital 5900 RPM 6/GS 2TB HD
MSI N580GTX Lightning Xtreme Edition
Samsung UN55C8000 55" 240hz LED 3D TV