MediabistroTV debuts a new series today, “My First Big Break” where we talk to media heavyweights about that break that got them to where they are today. Our first episode features Brian Williams, the anchor and managing editor of “NBC Nightly News.” You know what he’s doing now, and you may know a bit about his past. But did you know he went bankrupt? That he maxed out his credit cards? And that he became a chyron operator after failing in small market TV? Well, Williams finally got his First Big Break. He tells us who gave it to him and how it changed the course of his career.