Thanks for your first post in the Roku Community!
We can certainly understand your inquiry about accessing the GAAGO channel on your Roku device.
Please be advised that the GAAGO channel is available in the US region and can be found in the Roku search on your Roku device and on the Roku channel store online.
You may refer to this link: GAAGO | TV App | Roku Channel Store | Roku
We hope you'll find this info useful. Let us know in case you've still got any questions.