Mute The Box
I wish I could help you more. I think I found instructions from a link at Wikipedia. The mute button operates the TV by default. You setup the setup button as a shift key. Hitting the setup button gives you an alternate button, the mute button. If the mute button mutes the cable box, then when it unmutes the cable box, you get your audio back. I do not remember how to do this. I have had great luck with this. It is faster than anything else. Hope you get it worked out.
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