How do I get ARC to work with Sony DN1030 and Panasonic 55GT50?

First note that any HDMI cable will pass ARC audio .. HDMI 1.3 or HDMI 1.4 ... doesn't matter. Second, for the feature to work, the HDMI cable from the AVR must be plugged into the HDMI(ARC) jack on the TV as there is generally only one input designated as the ARC input, the HDMI-CEC (VierraLink) on the TV must be set to ON as well as to "external speakers". Then the HDMI Control feature on the AVR must also be set to ON as well. AFAIK, all these settings normally default to OFF from the factory. And lastly, note that AFAIK, your Panny can only pass PCM 2.0 using the HDMI(ARC) connection so if you want to pass DD 5.1 from Netflix movies, you're much better served connecting an optical cable from the Panny to the AVR.

Connect your sources (player, cable box, dish receiver, etc.) to the HDMI or component-video inputs of the receiver only.

Connect an HDMI cable from the receiver HDMI output to the TV.

All audio will be processed by the receiver and go directly to the speakers from the receiver.

The TV will function as a Video Monitor only (no audio connections).

If you are using an app built-in to the TV (such as Netflix) as your "source" then you may need to run a digital audio cable to the receiver for that function.

Since your receiver has WIFI, it would be better if you could access Netflix or other services directly with the receiver from the internet and not use the built-in app of the TV. Then you would not need the digital audio cnnection.
Edited by commsysman - 12/23/12 at 8:06am