I was just wondering, what is the average life of a plasma screen? I have stumbled upon an Alis panel in a shop today and a sticker on it claimed a 60,000 hours running time. I know that Alis technology increases the screen life, can anyone quote a figure for other screens? I have just bought a 435 and I like to keep my contrast and brightness settings pretty high (40 and 10-13 respectively) and I was just wondering how many hours I can expect from it (although I only use it for DVDs so the screen will hardly be on every day). Thanks.