jd - It powers on to the source I have used as my pass through source - Roku. Usually, I'll shut it off with "TV Audio" as the source. I only recently started using HEOS so I'm wondering if that might have something to do with it, but, in that situation I would assume it would turn on with HEOS as the source. I'm also thinking it might be a HDMI-CEC issue, but I have to use eARC for my DirecTV box right now. Correct me if I'm wrong but I believe I have to engage CEC to use eARC, correct? Because it is an older DVR, when I recently bought my Sony A9G, the audio stopped working when plugged into the AVR directly. By the way, I turned off all "Bravia Sync" features in the TV as well.What is the source that is selected when it powers on? The last source that was used? In some cases if the source comes out of standby mode (eg. PC), it can power the AVR on due to HDMI-CEC. In other instances, if there are kids in the house, they have been known to inadvertently power on the unit when listening to Airplay.