I just bought the last (new) Panasonic TCP50ST60 in Canada. I seldom ever watch a TV any more since I have a 27" iMac on which I watch most of my shows. In fact I probably will put less than 50 hours a year on my new plasma and really only bought it for the times I want an optimal viewing experience (50" is fine since my Genelec pro audio system is set up for near-field listening and I only sit 5' from the screen). Since virtually all my plasma viewing will be movies in 2.40:1 I am concerned that, over the years, the middle of the screen will age (while the upper and lower part won't). Having said that I decided that could stabilize the pixels somewhat by fully burning the screen in first. I watched less than 50 hours of mixed (1.85:1 and 2.40:1) viewing before beginning the process of using Avangelo2's slides to put a full 300 hours on the screen (I will run the slides 23 hours a day for 13 days). With that kind of mileage on the screen I'm wondering if I might be safer using a simple white screen or running a 16:9 blue ray movie in a loop. I'm a little concerned about the slides because I'm not sure they are properly (scientifically) engineered to exactly balance red blue and green pixel aging. Any one have any thoughts on this and are there any better burn in sources than these slides?