Hi @CC1966,
Welcome to the Roku Community!
We understand that you are inquiring about if you can use the Roku remote can control the power and volume of your TV.
We would recommend taking a look at our Support page for more information regarding How to set up your Roku® voice remote to control your TV | Official Roku Support
Let me know if you have any other questions, and have a good day!
Best regards,
Mary
Mary F.
Roku Community Moderator