I finally got all the parts and set everything up last night. Dish HD DVR, PS3 Slim and Wii (component cable) routed through a Denon 4310, one HDMI cable from it into the wireless box. The Denon does all the heavy lifting for upscaling and processing.
Everything went together easily. Not counting time wall mounting and building speaker cables, I went from cardboard boxes to watching a movie in under an hour. No problem using the Dish remote to control the AVR and TV. So far I'm very impressed with the picture. Much better than the Mitsu RPTV it replaces, which was pretty damn good for it's day. I set it to it's THX Cinema setting and watched part of Fifth Element on BD and it looked incredible. I watched part of a Clint Eastwood movie in HD on Dish and looked looked very nice too. Flipped through some SD content and it was fine as well, much better than the 8500 I was comparing this TV to.
I did notice that the wireless box likes a direct or indirect line of sight to the TV. In my case, it's under the TV in a media cabinet with glass doors, and the signal bounces out across the room and reflects off the back wall to hit the TV. When my wife tried working out standing in front of the TV on the Wii EA Sports game, there was the occasional brief video glitch, a few white blocks on the screen for a split-second. Running an HDMI cable to the TV solves that. This could be any issue if you have a lot of people walking around between the box and the TV while you are watching a movie so keep that in mind. It might be worse in my case due to it being in a media center with arsty looking blurry glass doors. I'll do some testing.
Overall, this is an excellent TV right out of the box and I'm very happy with it. It looks great, is super-thin, the picture is as good as anything out there, the wireless box gives some interesting options, and the price was right. Definitely a keeper. I look forward to tweaking settings on the PS3, AVR and TV over the next few days so see what it can really do.