I know this topic has been posted before. I found this post to be the most helpful. A Roku employee closed the post saying it was outdated due to a new version of the OS being released.
That said, I'm still having the issue described by many in that post. I'm actually having worse issues than described. I've experienced not only the Roku turning the TV on in the morning, but it installs channels and starts playing content.
One of the methods a user suggested was to change the screensaver to the default. I tried this and it stopped installing channels and playing content. However, the TV continued turning on.
Another user suggested turning off the CEC. I did this and seemed to have fixed the issue. However, I can no longer turn the TV on via the Roku remote's power button or home button.
I purchased a Roku Streaming Stick +v2 after reading online that this was the best fit for Samsung TVs from 2015. I used it with no issues for several months. However, the noise bothered my wife, not Roku's fault! So, I purchased some bluetooth headphones and connected them to my Google Pixel 4a 5G phone since Roku doesn't have built in bluetooth. I installed the Roku remote app to use Roku's Private Listening feature on my phone. This is when the Roku's A/V started having issues. The audio started cutting out and the streaming video started having buffering issues. The TV is connected via ethernet, where the Roku and phone are connected via WiFi.
Private Listening seems to be the issue. If you minimize the remote app it has issues. If you keep bluetooth connected to the phone all night it has issues with the Roku app, i.e. turns off Private Listening and sound suddenly comes from the TV. I often have to close the Roku remote app and restart it to get sound to go to the headphones. It's also not unusual to need to restart the video as well.
1. Obviously fix the issues stated above.
2. Make it possible to enable CEC again so I can control the TV via the Roku remote.
3. An option to set a timer to turn off the Roku and/or TV
Thanks for any help you can provide, and sorry for the long message!