I have three sources into the Arc (Apple TV, Cable box, TiVo antenna box) and output is to an OLED LG TV and am using a Logitech Elite remote with hub. Most of the time all is well. Sometimes when I switch sources, the source cycles on and off (video and sound) about once every second.
If I turn everything off, it fixes it and all is well again.
It happens most often when switching to the Tivo box but not always.
Diagnostic= 1356345119