My Tuner doesn't recognize HDMI on Apple TV 3
I had no problem with my audio/video Tuner recognizing Apple TV- 720P but when I swapped it out with the new 1080P it doesn't seem to recognize the HDMI connection. I can swap back the 720P unit and it works just fine, but the new unit won't work. I've tried different HDMI cables. My tuner is HDMI 1.3 compatable. Any suggestions?
Apple TV, Mac OS X (10.7.4)