Little People, Big World is a reality television series produced in the United States that airs on TLC. The series follows the six-member Roloff family farm near Portland, Oregon. Many of the episodes focus on the parents, Matt and Amy, and one of their sons, Zach, who all have dwarfism. The show follows the daily lives of the Roloff family — parents Matt and Amy, and their four children: Zach, Jeremy, Molly and Jacob. Matt, Amy and Zach are little people, while Jeremy, Molly and Jacob are of average height. Teenagers Zach and Jeremy are fraternal twins; although Zach is not of average height, his brother Jeremy is above average height (6'1").

Source: Wikipedia.org