You tube tv app not filling the screen

You have to download the APK Mod version of the Youtube app to do that

Hi Just-mike1,

Thanks for your inquiry!

Please be aware that while we don't currently offer that kind of option, you may still manually choose the app or channel you wish to view. If you have a Roku voice remote or Roku voice remote pro, you can also utilize the microphone button. Simply press and hold the Microphone button on your Roku voice remote while speaking the command normally to issue a voice command. When you're done, release the button, and your Roku device will fulfill your request and take you to the Roku Search screen or another location on the Roku interface.

You can also check out this support article on how to use voice to search and control your Roku device.

If there's anything else that we can do to help you, please let us know.

Best regards,

John