4 red blinks of death
Turned on my XBR-65X900B last Sunday and got the dreadful repeating 4 red LED blinks and the TV failed to boot. From limited research, seems like it's an indication of some sort of board failure.
I bought my TV last August directly from the online Sony Store, so it's a little disappointing that the set failed so quickly. I do love the set, and believed mine was a good sample (notwithstanding the above issue) without some of the display issues (weird light bleeding and green splotches, etc.) discussed in this thread.
Good thing it's still under warranty. After repeated phone calls to Sony support (and I took the advice of making sure to call them each day until the issue was resolved), and some hoop jumping, they are sending me a refurbished unit. I do have some concerns whether the one they're sending will exhibit any of the issues mentioned here, so fingers are crossed.
Reading the thread, I'm impressed that there are folks that managed to receive new sets and in some instances even models that are a step above. Thumbs up for pulling that off!