Thanks for posting in the Roku Community!
We're sorry to hear that you're having this experience. We understand that Live TV is streaming while you're accessing the Youtube channel, is that correct?
We would like to know how to identify and resolve any playback issues. A few questions here to better understand what you're experiencing:
- Have you tried the initial troubleshooting steps that @renojim posted above to see if that resolves the issue?
- What are the steps to reproduce the issue you are seeing?
- How long has the issue been occurring?
- Have you tried playing other channels if you are also having an issue?
With more information, we will be able to assist you further.