RCA from DirecTV receiver to Surround Sound then RCA to TV. If you have HDMI from receiver to TV, leave that and just use red and white (audio) for the others. Just leave the yellow alone. That was you should get Surround Sound and still have the HD picture.
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I found a solution. The Directv C31 box has a digital audio output option for connecting to an external AV receiver that doesn’t pass HDMI. I used that to connect to the digital audio input on my AV receiver. It works great and the sound quality is great.
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