Question: How do I separate videos that aren’t supposed to be in my playlist?

I have a feature on my social media site where I’m adding playlists, I have almost everything figured out except if I make a new playlist for my videos and try to add those just to that playlist it shows up in both.
How would I fix it?
Here’s the example.
The others I added are all apart of a Series called “TIS” and the other one is “The Sly Cooper Saga”
What I want to accomplish is filtering the episodes to where they only show up in their appropriate series playlist.

Can you add some more information here, I’m having trouble following this problem. Screenshots, code, …whatever is relevant to be able to understand what you are seeing.

I figured it out, I had to filter the episode content with the series content and use Multi-Reference Fields to accomplish this task.
I have successfully got it to work now.