When does Disney's Doug return?

Doug is an American animated television series and sitcom created by Jim Jinkins. The show focuses on the early adolescent life of its title character, Douglas "Doug" Funnie, who experiences common predicaments while attending school in his new hometown of Bluffington. The series premiered on August 11, 1991, on the cable network Nickelodeon. The original run consisted of 52 episodes over four seasons that were broadcast from 1991 to 1994.
Bluffington is in the United States but not in any specific U.S. state. The series revolves around Doug Funnie, an 11-year-old boy who wants to be another face in the crowd. He keeps a journal, which he treats as an autobiography, as he records numerous experiences over the series.