This is a complete list of episodes of the Lassie television series. Created by Robert Maxwell, Lassie premiered on CBS on September 12, 1954, where it aired for seventeen seasons, before moving to first run syndication for its final two seasons. The final episode of the series aired on March 24, 1973. Maxwell also acted as the show's producer until 1957, when Jack Wrather purchased the production company and show. He would be the show's producer for the rest of its run. The series continued to air in rerun syndication (both on broadcast TV and cable), off and on, for another 50 years. In syndication, the episodes in which Lassie was paired with the Miller family were often aired under the name Jeff's Collie, while the years with the Martin family were sometimes aired under the name Timmy