-   Larry, I don't think you're going crazy. If you are you're in good company. I have noticed that my Sony (I don't know the model #, but it's a 60 inch rear projection HDTV) has been quite a bit dimmer. I tried to adjust the brightness, but it was already maxed out. I hope someone answers your question soon, because I'm hoping there is an easy solution (there never is) to fix this problem. I love my TV.-   Guest
no more than likely your lamps are just dirty. take the back of and wipe them clean with a clean clothe. THen if the problem persists you are looking at a lamp issue. but try and clean first.( I had the same problem.)
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