'Undateable' creator Bill Lawrence, determined and on a mission: Launch a multi-cam sitcom

It's a Wednesday night in March at DC Improv and famed TV producer Bill Lawrence is nervous. The man who has spent nearly two decades behind the camera for multiple hit shows he created ("Spin City," "Scrubs," "Cougar Town") will shortly go on stage to perform about 15 minutes of stand-up. He knows he has to -- it's all part of a grassroots effort to promote his new NBC comedy, "Undateable" -- but he's still talking really fast, moving around a lot, and endlessly apologizing for being so nervous...