Dumb Question: Did you go into your on screen munu and make certain your source is either HDMI1 or HDMI2? If the tv is not set to the proper source you ain't gonna see a damn thing. I have my TIVO connected to the HDMI2 connection and it works flawlessly.
Just purchased my PX 600.
I am connecting it to my Time Warner Scientific Altanta 8300HD DVR
via component cables and everything looks good.
wanted to take advantage of the 2 HDMI inputs on the TV.
When I connect the cable box to the TV I do not get a signal.
Also, the setup features on the Cable Box do not respond.
Any ideas for resetting to get the cable box and the TV to talk to each other?
I am suspicious as the TV manual talks about getting all of your other panasonic components to talk to each other via HDMI, but there is little or no clear documentation about connecting cable source to TV via HDMI