After waiting about 11 hours for the 65F59 to come to room temperature, I plugged in all the connectors and turned it on. After fiddling with the settings and doing a Magic Focus (after 30 minute warm up), the picture looks decent. I have OTA HD. No cable/sat. I have a progressive scan DVD player hooked up through component video. I also have a Sony HD-DVR hooked up through component also (I tried the HDMI cable just today - had to borrow it from my friend). Everything looks decent. No weird screen problems. No HDMI problems either. I will have to perform a 117 point convergence and Video Essentials Calibration after the break-in period. I am going on vacation next Saturday until the new year - so that has to wait!
Also, I hooked up my Power Mac G4 with a ATI Radeon 9600 video card to the TV using a DVI-HDMI cable. The mac automatically recognized it as a 1920x1080i 60Hz monitor. It recognized it as a Hitachi too! While text doesn't look very clear, I played some HD video from the Mac and also displayed some iPhoto slide shows. Works great. That was my biggest concern and that has been resolved. I will have to fiddle with the overscan later. But for now everything works as expected. May be I will buy a Mac Mini or something like that next year and use that as a media PC with HDMI.
Also, my center channel speaker (Klipsch RC-7 26" wide, 12" deep, 44 lbs) is huge and heavy and I did not want to put that on the TV, so for now, I have it setup on the floor right in front of the TV with it tilted up at an angle that would make it our ear level. Sounds great. I looked at speaker mounts (rather TV mounts) for mounting my speaker above the TV, but decided against it since that would make the speaker too high.
1) OTA channel changes are pretty slow. Takes a couple of seconds to switch channels.
2) Switching inputs (Input 1, 2, 3, 4, 5, Air) is slow also since you have to keep pressing up and down to switch from one to the other. Drives my Harmony H659 remote nuts since it has to go up and down this list. If it starts from the wrong place, it will end up in the wrong input also.
For $1199 this is a steal. BTW, the 57" is selling at $999.