I have had my HDTV Mits 65907 for 10 mths now. I kept hearing about owners tweaking their Mits (on hometheaterspot and here). I believe these tweaks are to correct convergence drifts. However, the picture on my set in HDTV mode is so good (evn today) I didn't see a need to tweak. Am I missing something here? In fact, I have an option to get free professional calibration (included with purchase) but is hesitant to do so as I still believe in "If it's ain't broke, don't fix it". Also, I heard about the red push issue with Mits. For whatever reason, we like the redness. OK, it may not be "correct reproduction" but it's really a user's preference in my opinion. Any feedback on this would be appreciated.