Thanks gentlemen.

Rick: They have a bunch of calibration numbers for my TV posted on AVS. However, the Pioneer I bought apparently is pretty sophisticated when it comes to calibration. The best I can make of it, I'd have to take all sorts of steps that I don't really understand to get the full benefit of that sophistication. I'm just not particularly competent with electronics and computers. Ultimately, I figure I'll just enjoy the TV more if I think I'm seeing the best picture, even if dropping the $300 really made little or no difference. That, at least, is my rationalization thus far. Still trying to think of others I can possibly believe (got a good price on the TV; will take a lot of time to just get the new receiver set up, much less the stupid TV; I work hard and deserve it), but have failed.

I'll let folks know what the person I end up using says about the break in and other general impressions.