Do you know him best as Capt. James T. Kirk of the Starship Enterprise? As the over-the-top pitchman for Priceline.com? As Denny Crane on Boston Legal, or perhaps T.J. Hooker in the eponymous '80s TV show? However you know him, you haven't really gotten to know William Shatner, one of the most recognizable and durable television actors of the last 50 years. He has written a memoir, Up Till Now: The Autobiography, in which he recounts the ups and downs, the surprises, disappointments, and delights of his career, which shows no signs of slowing down.Find out about his memorable "There's something on the wing!" Twilight Zone episode, his role in history's first all-Esperanto movie, and what the cast of Star Trek really thought of him.