Blair123

Since I don’t know which Webos tv you have or Sony receiver, I can only recommend you make sure you plug the HDMI cable into the arc/earc port of the tv to get OTA sound from the tv to the receiver. Also your receiver must have arc capability with CEC and arc turned on.

I am new to the forum and thought this was the closest topic to my issue. I have a LG QNED 85 smart tv with Webos. I only get stereo from my Webos apps and lg live tv with the sound set to pcm using the arc port from my LG tv to my pioneer AVR. If I set the sound to auto or passthrough I get digital noise. I have an Apple 4K tv second gen playing the Arizona prime and Apple + video apps and get 5.1 audio with the sound set to passthrough to the AVR. I also get OTA broadcast tv that gives me 5.1 audio when the sound is set to passthrough. Strangely, I get 5.1 audio from YouTube Webos app for videos that have 5.1 surround otherwise digital noise with the sound set to auto or passthrough. The tv sound out through the tv EARC port to the audio ARC port of the AVR is communicating. My AVR has only ARC capabilities. Also CEC is working with the Apple TV and AVR. I wonder why Webos apps and LG live tv cannot use the passthrough sound settings to give me 5.1 audio?