You should be able to show a list of episodes, which are limited by the program related to the asset. You can limit the list of episodes by an Xpath (if the relation between the asset and the program is already committed), or by using a microflow as a datasource.
Hi!
Is your problem you can't get any episodes to show? Or can you get episodes to show, just not the right ones?
As Tobias said, the key in this answer is that the entities should be COMMITTED to the database in order for xpaths to be applied and limit the results through "Selectable objects”.