Originally Posted by keg in kc
I think the show survives by generating strong storylines that don't have anything to do with established Marvel canon (or just loose association or minor characters). It's all about the characters they create for the show. If people care about the ensemble cast, if the audience becomes invested in their story, people will keep tuning in. Like any other show. Strong acting, good writing. Good TV.
Easier said than done.
This is exactly why pilots are necessary.
If a pilot doesn't find an audience immediately, more often than not, the show doesn't survive. Networks aren't going to commit to 13 or 24 episodes when no one is watching.