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Tivoburkee
5 years agoCommunity Streaming Expert
The Roku remote controls the tv by IR, and then the tv controls the av receiver volume by hdmi-cec over a hdmi cable. You can't pass remote commands over a optical cable. Yes, switch to hdmi cable.
The dish remote probably controlled the av receiver by IR too.
wombat7477
5 years agoReel Rookie
HDMI did the trick, thanks for the advice!