Another sneak attack are the apps on smart TVs: For example: The Apple Music app on a Samsung (my experience is with a Q70) not only put out ONLY 2 channel music, but, the receiver (a Yamaha TSR-700) refuses to engage ProLogic and treats it as "straight" -- meaning you get only 2 channels playing. To test it I connected an Apple TV to the Samsung smart TV and sent the audio to the receiver via eARC --- and got the full 7 channel audio that Apple calls "Spatial Audio". Both Samsung and Apple deny having any responsibility for the hobbled Apple Music App on the Samsung Smart TV. (Also, although I did not test it, the app on the Samsung TV has no options so it does not have the option of sending lossless audio to the reciever either.) (And also: Yes, the app is up to date!)