jim - While the Q8F TV does not feature a traditional On Timer, it does support Alexa Hands-Free: Anytime through the Alexa TV app. With this enabled, you can turn your TV on just by saying “Alexa,” even when the screen is off. To activate this feature, go to: Settings > All Settings > Advanced Features > Voice > Amazon Alexa Settings, then select the Settings gear icon. Within the Alexa settings menu, turn on Hands-Free, and enable Hands-Free: Anytime for voice control when the TV is off.
~ Samsung Specialist