Posting here only because the New Topic button is greyed out for me in the Beta Community area. In the latest iOS beta of Channels DVR (Version 2020 Build 9.2.535) there is a fairly obscure bug.
If you navigate to a TV show within the library where it lists the episodes, then hit the "..." button top right ad choose the new option 'Show Options', you get some handy new options to e.g. Ignore or apply commercial detection for that show. This will be really useful. However, when you click the 'X' button top right on this screen once you've made your changes (or if you make no changes) then it does nothing. The only way out of the screen is to click the '<' button top left which then discards any changes made on that screen.