Hi - I have a Samsung 8500 and a Denon receiver that have worked together harmoniously for years but now I either get ARC with TV, or sound through other AVR inputs, but not both. When my TV sound is working, and I can control the receiver volume with the TV remote, and I switch to the HDMI on TV and try to select an AV input, the receiver flashes the desired input, then right back to TV. If I turn off HDMI CEC on the receiver I can get receiver inputs to work, but then I get no surround on my TV input. The TV also fails to recognize the receiver as an audio playback option. Has anyone had an issue like this? The only thing I've done recently was turn on the HDMI control feature on my Roku but turned that back off and things were fine until today. I can always hook up an optical cable but TV is wall mounted so I'd just like to avoid that if there's an easy solution.