When I set up my Roku stick and remote, I connected it to an HDMI slot on my Onkyo home theater system.  There was some activity to set the volume control button to regulate the volume.  It worked perfectly. My TV was basically set at zero volume and the Onkyo responded to the volume button on the remote.
Something has happened.  Now, both the TV and the Onkyo respond to the volume button.  This causes a very slight echo effect as the TV and Onkyo are not perfectly in sync.  How do I get the remote to ignore the TV?

rtjarrett wrote:

When I set up my Roku stick and remote, I connected it to an HDMI slot on my Onkyo home theater system.  There was some activity to set the volume control button to regulate the volume.  It worked perfectly. My TV was basically set at zero volume and the Onkyo responded to the volume button on the remote.
Something has happened.  Now, both the TV and the Onkyo respond to the volume button.  This causes a very slight echo effect as the TV and Onkyo are not perfectly in sync.  How do I get the remote to ignore the TV?

I would find the setting that disables the sound on the TV. Most TVs have it. Enable it when you need to use TV Speakers. I know my CEC setup is smart enough to know, control the TV Volume when AVR turned off, but control AVR when on.