Sorry to hear about your luck guys. Previously I only knew of 1 or 2 people who have gone through multiple sets. The fact that you have been able to exchange the sets multiple times counts for something (though it probably wasn't Toshiba who did the exchanges) I just still have faith that they (Toshiba) will make things right. What made me decide to still buy the Toshiba despite knowing about these potential issues was taht I had been looking at HD sets for 9 months. I always decided not to because there was some feature missing or some reported problems. I decided to make a choice and start enjoying the TV. If something happens, I'll deal with it. I did look at all of the sets and compared them in detail and the Toshiba's looked like the nicest one. I didn't care for the Hitachi stretch modes at all, I've had bad luck with Sony and don't want to support them as a company because of all the proprietary features they always use. The Mits was my second choice and should the Toshiba start giving me a lot of trouble that's likely the way I'll go. I have no access to checking out Pioneer and just didn't look too seriously at the Panny I guess.
I agree with you though, becks. I was saying the same thing on the other side. Spending this kind of cash you shouldn't have to settle on features or quality (within reason, nobody expects a plasma for $2500) All this said, these are all very nice sets and if you want HD, I say don't do what I did and keep waiting. Pick one and get the best deal you can on it. If you're worried about these problems, pick up an extended warranty with a company that will allow exchanges for a different brand if you keep having problems. In your case, make sure it's a place that sells both Tosh and Hit.