8345 Subtle dimming flicker on 1080p Apple TV
Just to throw in my experience, the 8345 has produced a great picture for me after 150 hours of use thus far. My eyes appreciate brightness so I find dynamic mode to be the best.
One issue was driving me crazy recently. When watching movies on Apple TV, I noticed a slight twitching or flicker of light in the background images, whereby the projector was bouncing between brightness levels randomly, sometimes several times a second. Keep in mind that power consumption was set to normal, not ECO. After playing with the Apple TV menu and switching the resolution to 720p, I noticed the issue would go away, however this was not an acceptable resolution to me.
Long story short, after playing with the Epson menu and troubleshooting, I determined that the Noise Reduction feature was causing the jumpiness in picture brightness. When I changed the Noise Reduction setting from "1" to "Off", the issue went away completely and I am now able to watch 1080p video with no issues at all.
Just thought I would share in case others ever experience this issue.