Assuming you would like an overview of how the Tubi app works:
Tubi is a video streaming service that offers free ad-supported TV shows and movies. The content on Tubi is provided by major studios and independent producers. Users can create a watchlist of their favorite titles and Tubi will suggest new content based on their interests.
Tubi is available on iOS, Android, Roku, Amazon Fire TV, Vizio TVs, Samsung TVs, Comcast Xfinity X1, and Cox Contour.