In 1974, Dian Fossey and researcher Kelly Stewart witnessed something few have ever seen: a newborn gorilla in the wild. Rereading her notes about that magical day, Kelly recalls what it was like to see the baby, named Titus, for the first time. Follow Titus’ decades-long story, from orphan to great leader. Part of the 26th season of the Peabody and Emmy award-winning series produced by Thirteen/WNET New York for PBS, “The Gorilla King” premieres Sunday, April 20, at 8 p.m. ET (check local listings). Major support provided by Canon U.S.A. Inc., Toyota, and the Corporation for Public Broadcasting. For more information, visit http://www.pbs.org/nature