I have a  Samsung QN65Q60RAFXZA Flat 65-Inch QLED 4K Q60 Series. I have TV HDMI 4 connected to a  Pioneer VSX-LX303 9.2 Channel 4k UltraHD Network A/V Receiver. If I watch TV, play YouTube videos, or listen to Amazon music all is OK. When I try to use my Sumsung BD-P1600 blu-ray player that is connected to the receiver, it won't work. It did work for the first 2 days, but then it stopped being able to power on the blu-ray.  I tried to configure the "AV Receiver" using the TV's "universal remote" function, but when I choose the brand Pioneer for the AV brand, it reports a "download error" so it doesn't recognize Pioneer communications. I spent 2 hours on the phone with Samsung, and I got the response I expected. Samsung says it's the Pioneer that is not compatible with their TV.   Here is a response I have to Pioneer with a work around I am using to get things to work.     Workaround - using the Blu-ray remote and the LX303 remote to establish connection to the blu-ray The new TV came with a "universal remote". The TV settings can be used to add devices to the universal remote. The TV shows an icon for the discovered input source connected to HDMI 4 (ARC) "AV Receiver"  I select that icon using the TV's universal remote and the LX303 switches to "BD/DVD", but does not turn on the blu-ray I can turn on the blu-ray using its original separate remote. When the blu-ray starts to boot, the receiver switches back to "TV" I use the LX303 remote to switch to BD/HDMI and it switches back to TV, I keep repeating the BD/HDMI pushes and eventually the blu-ray finishes booting and the receiver stays on BD/DVD I then have to use the blu-ray remote to control the blu-ray. When it did work in the beginning, I could use the TV's universal remote Workaround - to use the TV's universal remote to control the blu-ray I tried to configure the "AV Receiver" with the TV settings for the universal remote, but it reports "error downloading" when I select Pioneer as the brand.  It list various brands so I pick a random brand. It then ask if the remote was successful turning the receiver on/off. I answer yes (it did not), and then it ask for brand of blu-ray. Once I select Samsung, it is finished. I can then use the universal remote to control the blu-ray. I still have to use the first workaround to get the blu-ray to start up.    ... View more