I don't know about the warranty, possibly though, look it up. When I played cod4 on mine there was no IR at all and I was on it for at least an hour. IR does improve (although less on Panasonics, but it's hardly a problem to start with) over time once everythings has got going. You wont experience any permanent screen burn, any IR that you get can be remove by watching some SD TV on it, I recommend the plasma, fast motion handling is good, colours are good, blacks are amazing, it's all good. SD is also very impresive, better than the LCD, although the LCD's SD is among the best for LCDs. If you do go for the plasma and you have a huge gaming session then just put on some regular TV for 10 mins or so after 2 hours or so