When does Daktari return?

Daktari (Swahili for "doctor") is an American family drama series that aired on CBS between 1966 and 1969. It starred Marshall Thompson as Dr. Marsh Tracy, a veterinarian at the fictional Wameru Study Center for Animal Behavior in East Africa. Tracy's pets, a cross-eyed lion named Clarence and a chimpanzee named Judy, were also popular characters. The series was broadcast in four seasons, the first in early 1966, the last three each beginning in September 1966, 1967 and 1968.