For some people, the favorite memories from their childhoods are playing with toys, some of which become iconic through the years as multiple generations of people play with the venerable playthings. This series takes a look at some of America's greatest toy franchises, including the people and companies that created them, telling the stories of the rise -- and, sometimes, fall -- of the billion-dollar creations. Some of the featured toys are original creations, such as Barbie, while others are based on pop-culture franchises, including the "Star Wars" line.