I just bought and setup a Denon HEOS soundbar with my TIVO Roamio. When I change channels or fast forward/rewind, there is a static/crackling/pop sound. Denon is stumped, so I'm hoping this community can help. What might it be? I tried: Using HDMI and Optical - the same problem on both Other set top boxes (e.g. cable) and they have same problem all be it less pronounced Thanks for your help.