Well! Guess I should mention I have had my Panny since September 2004. I bought the PT-50LC14 from Sears. I have it plugged into a Monster Power Home Theater Powerbar 2100. I think this is what is saving my lamp. It is a good investment for anyone who is spending over $1900.00 to purchase a TV.
Why would anyone spend thousands of dollars on a TV and not plug it into a power conditioner of some kind? That's like buying an Armani suit and washing it in a puddle, not knowing how clean the water is. You may get a muddy suit, you may not, but why take the chance?
I doubt that this would correct ALL the lamp issues out there, but "clean" power could never HURT.
i only have mine plugged into a surge protector. two years running. do i need a power conditioner. ive also stopped running an aux fan, it creates alot of unwanted dust particles.