I have installed and re-installed the app on Apple TvOs and Roku, and neither works.
The Apple Tv app opens and immediately closes. The Roku app opens, but has a life of it's own, as it seems to select what it wants, not the user input.
The biggest problem, however, is even with a PN+ subscription, none of the current season shows are available.
What a shame. I hope you didn't pay someone to create this.