Hi @OldTim,
Welcome to the Roku Community!
We understand that you are facing a sound issue when playing content on Youtube and Youtube TV. We will work with you to know what went wrong so we can assist you further and fix the issue but we need more details.
Here are a few questions here to better understand what you're experiencing:
- Is the issue you are experiencing only happen on Youtube and Youtube TVor does the loss of audio happen on all channels?
- Have you tried removing any channel you observe this issue on from the Roku home screen? Then, restart your device. Once it loads up again, add the channel back once more and try playing content again.
- Have you tried using another HDMI cable to connect your Roku device?
- Have you tried taking a look here in our Support resources and following the steps to help resolve your audio issue? What to do if you do not hear sound from your Roku® streaming player | Official Roku Support
We look forward to hearing from you and looking closely into this issue. Thank you!
Best regards,
Mary
Mary F.
Roku Community Moderator