KBTOYBOXHi Stephanie:
You may be on to something here. Currently, when I press the mute button on the Cisco remote, the red light indicator on the remote does come on the "TV Button" on the same remote. Please supply me with instructions on how to reprogram the remote to mute the cable box, rather than the television's audio. But please keep in mind, the "buzzing noise" only occurs when I pause either the DVR, or live television. Obviously, and currently with the button being programmed to mute the television, the "buzzing noise" does disappear, but, I shouldn't have to mute either the box or the television as a permanent fix. Please advise. Thank you.
KBTOYBOX,
You can try changing the volume control to the cable box, however, I don't think it will fix your issue. Here's the Remote Control User Guide to help. The hum is coming from the TV speakers and the only way to fix it permanently would be to not use your TV speakers. Some TVs have an Audio out option that you can connect to your AV receiver and then turn the speakers off in the menu settings. If your TV doesn't have this option, we will have to look into connecting the equipment differently or using different kind of cables.