Scott Silveri has written and produced sitcoms for more than 20 years. In all that time, he never encountered a TV family that looked anything like the one he grew up in -- with a mom, a dad...and a brother with cerebral palsy. He changed that with his show Speechless on ABC. Silveri tells us about looking to his own past for stories, and why he was determined to make a family comedy and not just a "disability show."