I like SF and I read a lot of short stories, regularly. But I admit I prefer longer books or even series because if something is interesting I don't like it to

I like SF and I read a lot of short stories, regularly. But I admit I prefer longer books or even series because if something is interesting I don't like it to end too quickly and I like the feeling of being embedded within the world. If you had no previous exposure to Star Trek and watched any single episode of Star Trek DS9 it might not be very compelling. What makes it compelling is the attachment to the characters and the knowledge of the backstory the episode is embedded in.