I have just purchased an Arc to replace my playbar. Everything is setup and viewing Jack Ryan on Amazon Prime, the TV app shows “Dolby Digital Plus 5.1”. I spoke to support and sent a file, which on analysing they confirmed everything was correct and the Arc was working correctly.
On reading other threads, they seem to suggest that I should be seeing “Dolby Atmos” rather than “Plus 5.1”
I am now confused and wondering if something isn’t working.
Using a Virgin V6 box, TV is an LG48CX, have Arc connected to e-Arc, V6 Box connected to HDMI in on TV. Sound set to HDMI - Arc, Advanced, set to - Sound out - HDMI Arc, Additional settings - Digital Sound out - Pass Through and eARC on.
Sorry if this has been done before :)