Mine is NOT flickering and I got mine from AdvancedLamps.com. A few months ago, I had ordered a replacement from them, just in case... And suddenly I needed to use it. My original Philips didn't even last halfway to the promised 8,000 hours. Now, tonight, I've just ordered another replacement to have on hand, just in case.
I've been very pleased with their bulb so far. That's why I'm ordering a 2nd one.
lamp | bulb + housing $88 + $11 s&h = $99.