A model that might be looked at is Oprah.
i.e. if you manage to do the following trifecta, you can collect big:

- Generate a large, passionate, ongoing audience (which stays with the station/channel who air you giving them an incentive and value to supporting you)

- Own the content yourself and negotiate for a significent portion of the advertising revenue (and ideally manage a mix of local/national advertising)

- Continue to add other content and outlets, as well as maintaining a strong brand and connection to your audience.

Shannon