Hi @CX,
Welcome to the Roku Community!
Thanks for letting us know about this issue that you had with the Roku TV since it turns off by itself. We're happy to help.
Please ensure that the sleep timer is turned off by following the steps below:
- Press the Home button on your Roku remote.
- Scroll and select Settings.
- Select System.
- Select Time.
- Turn off the Sleep timer.
We would recommend trying to see if that resolves your issue. Please keep us posted.
Thanks,
John
John
Roku Community Moderator