Well, I'm the proud new father of a TH42PM50U. Went by Costco to look at some DVDRs last night, walked around the corner, and there's one sitting on a cart. It was right before close, so I didn't have time to ask why they all of a sudden had one. My fear was it was a return.
So, I go in as soon as they open this morning, find one of the guys in the know, and ask him how they come to have a 42 in when they haven't had one for a couple of months. He confirmed my worst fear, that it was a return. I expressed surprise that they had it on the floor and he said never used, it didn't fit where they wanted to put it.
So, he offers to (said he needed to anyway) hook it up and check things out. We open it, I immediately notice the power cord was never even unwrapped which helped out a bit. We rolled it over so we could put an HD feed into it and fired her up. Beautiful picture, all looks good. I couldn't remember how to hit the menu to check hours (or if it's possible on this model), but with the cord never opened, that put me at ease.
I pointed out so stains and spots on the front. At first I feared they had used something that stripped it a bit. I pointed them out to him, and he said he'd knock some of the price if I wanted to try and, it'd still be backed by Costco's guarantee. Seemed like a win win for me, so I took it. He knocked I guess about 10% off. I probably could have fussed a bit more, but was already in happy happy joy joy mode so...
Got the thing home hooked up and looking great out of the box. Flattend all picture settings to 0 for now. Haven't even tried a calibration yet, just wanted to take it out of torch mode.
As for the spots, a little filtered water on a t-shirt and about 20 seconds later, they're all gone.
I think I'd still ike the 8UK a little more (smaller bezel and all), but for the added peace of mind Costco brings to the scene, I'm a happy boy!!!