Ok, the "change lamp" warning message just popped up on my screen. Unit is about 5 years old. JVC 70 inch, been a good TV so far. Anyway the part # is TS-CL110U They are sold for around $75 on ebay/ Amazon etc..............but they don't seem to be JVC OEM, which are a lot more $ obviously Do these OEM copies from China etc work ok? Does it make a difference if I don't get it from JVC and I go with an aftermarket lens/housing? Thanks in advance.