I recently bought a replacement bulb for my JVC 52" rear projection. I had an option of saving $35 for buying non-OEM Phillips, which I stupidly took.
I didn't realize it but the bulb was so dim and failing prior to the 90 warranty, but it wasn't until an authorized repairman diagnosed as a failed bulb. I contacted Lighting Technologies, Intl, the distributor, and they refused to even consider a return or exchange because I am now outiside the 90 day return window. Buy OEM and don't deal with LT Int'l. They suck.
Monetary Loss: $245.