i've replaced my toshiba 72mx195 with the mitsubishi wd-73640 because the light engine failed on my 72mx195. Here's my feedback:
the picture on the toshiba 72mx195 was actually slightly better, with slightly less rainbows and pixelation. I found the 72mx195 to be a tad more clear, and the color to be more enjoyable. That said, the 72mx195 cost me $6000 back in the day, and the wd-73640 cost me a mere $1800. (i'm in canada, things cost more here)
- the wd-73640 is hdmi 1.4 and actually accepts 1080p signal. My 72mx195 would only take a 1080i signal over HDMI. Although the deinterlacer in the 72mx195 was great, 1080p60 @ 120hz still makes for smoother motion.
- the 72mx195 hdcp negotiation issues with my other devices resulting in a black screen, the mitsubishi works perfect every time.
for $1800 (or $1300 in the states for you lucky americans), you still cannot get a better TV. I'm very happy with my purchase and have no regrets.
I am having issues however, but they're most likely HTPC related. Here's my set-up
AMD A8-3850 APU
ASUS F1A75-M Pro Motherboard
Xonar PCI Soundcard
Windows 7 - all latest drivers and firmware for everything
Harman Kardon AVR 745
Initially I had hooked up my HTPC via HDMI through the receiver, only to discover that it cannot do 1080p pass through. I then wired the HTPC directly to the TV via HDMI and have run optical for audio from the HTPC to the receiver. Oddly enough the motherboard would only do 2 channel stereo over optical. I added a Xonar PCI Soundcard, which lets me specify DTS 7.1, but I'm not sure if its actually working properly. The display on the receiver never seems to change based on the signal coming to it like it does with my PS3.
Anywho, onto the bigger problem) Windows 7 seems to work just fine and movies work great. However, whenever I launched a game like Crysis 2 or Bioshock, initially I had no display at all. The screen would turn blue like its waiting for a device to turn on.
Later I played with some resolution settings, and toggled some scaling options off and on. I didnt think I even changed anything permanently, but oddly enough now displays, but doesnt want to scale or plays in a window in the corner. Even then, the mouse doesnt seem to correspond with the screen. When i run the mouse over the options (new game, continue, options, etc) it doesnt light up or get selected. It's all been very inconsistent. Does anyone have any suggestions? I suspect it has something to do with the scaling options in the catalyst drivers. I know very little about ITC or GFX scaling, and I'm not even sure that's it. Any input or suggestions would be of great help.