Since the focus of Ron Paul has been to reach out with his message to as many as possible, Id use a kickstarter like model of financing.
One where you have targets like if x money is reached episode will be free x days after airing or main interview free. If you pay say 10$ you will get a small reward besides the episode maybe access to a forum where dr answeres questions, 100$ a larger reward and so on. Maybe when you donate/subscribe you get to pick a person you want Dr Paul to have an interview with.
I'm not saying the current model doesnt work I am just brainstorming ideas I personally would have liked to see.
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