The Great Courses Plus is a new app for the Fire TV and Fire TV Stick that offers one of the best collections of college-level course videos by professors and experts from the top universities in the country. They offer over 7,000 videos in thousands of courses, with new subjects, lectures, and professors added every month. A monthly subscription is required for unlimited access, which costs $14.99 per month if paid anually, or $19.99 if paid monthly. The service does offer a 30-day free trial for those interested in seeing what they have to offer before committing to a paid subscription.