1/11/2011: PART I: Betsy Carson, Toni Fiore, Miyoko Schinner, Terry Hope Romero Vegan Mashup The filmmaker Betsy Carson has a passion for sharing the benefits of a plant-based diet, and is fueled by a lack of vegan programming options. Since 2005 she has produced 52 episodes of the popular public television program Totally Vegetarian. And…