A warm welcome here in the Roku Community, @jtlwilliam.
Thanks for reaching out here. We'd be happy to provide further information about this so you can successfully control the power and volume of your TV using your Roku remote.
If the B.E.A. TV is not included in the list when attempting to find the remote, you may try the codes for Atvio TV, as this was confirmed to be working for some users.
4 Digit Atvio TV codes:
3653 3654 3657 2371 6281 0881 3638 0891 3636
5 Digit Atvio TV codes:
13654 13657 12865 13729
You may refer to this thread for reference: Recognizing B.E.A. Television brand when pairing remote
I hope you find this information helpful.
Best regards,
Carly
Carly Y.
Roku Community Moderator