An anonymous reader writes: Whether he's debating creationists, taking selfies with President Obama, or "Dancing with the Stars," Bill Nye the Science Guy is no stranger to the spotlight. But what about the man behind the public persona? How did Bill Nye become the Science Guy? Bill Nye has made his debut on the PBS series, The Secret Life of Scientists and Engineers, to reveal the story of how he rose from being a young comedian from Seattle to becoming a science icon. In his profile, Bill Nye talks about his early days impersonating Steve Martin, why bow-ties are important in the lab (and with the ladies), and how Carl Sagan's advice helped to shape his hit television show.