We installed our brand new 55HX929 yesterday - very simple setup, using VERIZON FIOS and Apple TV. After confirming FIOS worked (I did not tackle the APPLE TV part), I watched one of the HD channels for 4-5 minutes, then turned it off to undertake other weekend projects. Several hours later, I could not turn it on - I got the proverbial 4-blink red LED sequence. I tried all of the recipes for reset, all to no avail. Any ideas? I would like to know more than just the typical reset sequences, which so far, have not helped. Sony has offered to give me a brand new replacement for the "DOA" unit, but I am now quite hesitant. I hear that many of the new SONY units are shipping DOA and with this problem. I am considering a refund. Any qualified words of experience and encouragement appreciated. Thanks.