Many, many people have requested that the "private listening" feature not mute the TV sound, but so far Roku has been deaf to the idea (no pun intended). I'm not aware of any solution that doesn't involve additional equipment, but maybe others have some suggestions.
We’re upgrading Roku Community to bring you a faster, more mobile-friendly experience. You may notice limited functionality or read-only access during this time. Read more here.
Planned Downtime:
Community will be unavailable for up to 24–48 hours during the upgrade window during the week of May 19th and you may notice reduced functionality.
In the meantime, for additional assistance, visit our Support Site.
We're sorry for this disruption — we’re excited to share what’s next!
For support, visit support.roku.com.