Greetings in the Roku Community, @Moonage!
Thank you for bringing this issue to our attention. We want to clarify that the feature you mentioned is not currently available on the Roku platform. The hearing aid function is meant for private listening only and cannot be used at the same time as the TV speakers.
We hope you find this information helpful. Please let us know if you have any further questions.
Best regards,
Jharra
Jharra Q.
Roku Community Moderator