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Thread Starter 
This is my first post in AVS, I looked around trying to find a solution to this problem out there already, but didnt find anything.

I have a Panasonic PT-AX100U hooked up via HDMI through a Onkyo Reciever. DVD's play/look great, but when I try to hookup and use cable I am having problems.

When I change the channels, my signal drops and it appears as if it is trying to renegotiate between the AX100 and the cabel feed. Panasonic mentioned it might be HDCP issues and to talk to Time Warner. Time Warner is clueless.

Is there a known issue out there? Component works just fine, but I have heard HDMI connectivity is the way to go since it is a true digital signal.