I don't know if you're correct in saying that Panasonic are fourth in the electronics world, but can I just point out that the most popular restaurants in the world are McDonalds and Burger King, but no-one (apart from yourself) would say they were the best.
I own a Pioneer plasma, never had an issue with screen burn, and the picture is awesome.
I've owned 3 Samsung TVs, one was a plasma, and was quite poor picture wise, the other 2 were LCDs, and suffered hugely from backlighting problems. I don't dislike Samsung, and I would certainly consider buying one in the future, but IMO, they're not in the same league as Panasonic.
You have a major problem with Panasonic because you were stupid enough to leave a paused bright image on a new tv for 4 hours, so I'm sure the OP will not be swayed by your incomprehensible rantings.
Sorry for feeding the troll guys, but he's such a ****