I bought this TV to use the WiiM TV app. This is my setup.
TV
- Speaker output: ARC
- CEC: all on
WiiM
- Auto-sensing HDMI : on
- AOTO : off
When I play music on WiiM, turn on the TV and open the WiiM TV app, it works fine.
If I want to watch Youtube, stop the music on the WiiM and then press the YouTube button on the TV remote to play the video. The WiiM input will then switch to HDMI via auto-sensing.
If I get bored of YouTube, simply open the WiiM TV app and resume music on WiiM.
I don't use the TV's built-in speakers, so everything works fine.