I have a Tivo Bolt connected to a Sony Bravia TV via HDMI, and the TV is connected to a Samsung Q90R soundbar via HDMI/ARC. When watching content on the Tivo - through the soundbar, the audio will periodically cut out for a second. IT happens all the time and is very annoying.
This doens't happen when playing through TV speakers
It doesn't happen when playing other TV content through the soundbar
It doesn't happen when the Tivo is directly attached to the soundbar. (cumbersome)
Only when watching the tivo through the TV and soundbar