Hi @BaldCat2023,
Welcome, and thanks for posting to the Roku Community!
Please be advised that Roku devices or TVs don't have a mirror function or feature for syncing one TV to multiple devices. This functionality may require external devices.
We always aim to provide our customers with the best streaming experience and convenience when using our services. Thank you so much for your feedback; we value your input.
You can make suggestions here: Suggest a Feature | Roku Community | Roku.
Please let us know if there's anything else we can do to assist you.
All the best,
Chel
Jecheal R.
Roku Community Moderator