Define what the member is saving
Begin with a representative episode and the reason someone wants to return to it. Decide whether the bookmark refers to the whole episode, a learning resource or another explicitly supported item. Keep it separate from playback position and course completion, which may need different rules. Agree what an anonymous visitor sees when selecting save and how a signed-in member recognizes the result. The first release should establish one useful saved-content journey before adding folders or more complex organization.
