Series/Sponsorships: If you want certain content recommended together, we can create a business rule that enforces if a video in the series is clicked on, only recommend other videos in that series. Submit a business rule on the Accounts page of Vision. Here let us know what the unique tag that will be present on all the videos in the series (ie- seriesXYZ).
Add a category: Provide us with the tag of the additional category and make sure there will be enough videos with tag.
Recency: We can have a recency weight or hard cut off of what content should be used based on import date.