This site and www.avsforum.com have fine tuning tips that should help. I had no idea how to set gain, color balance, etc. and the Samsung forum on avsforum helped.
I just bought a ln52b750 it is not here yet should be here by tomorrow tho. I was just looking for some tips on getting the best pic quality, I have read some stuff about calibartion? But i am not to sure what it is or how you do it? Any heads up on this tv would be grate thankx for your time.