I lost the Apple Airplay setting on my Samsung TV. My TV is model UN65RU7100FXZA. I used to have Airplay under Settings - General - Airplay Settings, but now that option has completely disappeared. It disappeared after I did a factory reset on the TV after it would periodically lose the Anynet+ settings for my ARC Port 3. That now seems to work, but now as explained, the Airplay has completely disappeared. I again did a factory reset on the TV, but that did not bring back the Airplay settings. Not sure what to try next.