Hi @Oma11,
Thanks for your first post in the Roku Community!
Thank you for using the Roku Streaming platform to enjoy The Great Courses channel. We would be more than willing to assist you with this.
When you open The Great Courses application, you will immediately be taken to the main menu screen. For the list of courses, we recommend contacting The Great Courses channel provider directly, as they are responsible for developing and managing the application on the Roku Streaming platform.
Thank you for your understanding and cooperation.
Regards,
Riamie
Riamie D.
Roku Community Moderator