RokuGuide Channel Description: What's On? allows Roku users to check local movie listings and watch trailers for those listings. Movies listings are available for "today only" and for any of the next 7 days. When you first access this feature, you will be asked to enter your zip code. You can change your location later using the "settings" option. Once you've entered your zip code, you can select a local theater, and then select from the movies that are showing at that theater. For each movie, you can view showing times or watch the film's trailers.
If you're looking for TV listings, you can select from over-the-air (OTA) broadcasts or from local cable/satellite providers, again based on your zip code. What's On? will list the programming schedules for all available channels, or you can set up your favorite channels.
What's On Channel Discussion on Roku Forums