with 6 episodes premiered on February 13, 1963

with 26 episodes premiered on September 12, 1954

The first season of the television series Lassie premiered in the United States on CBS on September 12, 1954 and ran for 26 episodes until its conclusion on March 6, 1955. Produced by Robert Maxwell,… see more

with 39 episodes premiered on September 11, 1955

with 38 episodes premiered on September 9, 1956

with 40 episodes premiered on September 8, 1957

with 39 episodes premiered on September 7, 1958

with 37 episodes premiered on September 6, 1959

with 36 episodes premiered on September 11, 1960

with 36 episodes premiered on September 10, 1961

with 32 episodes premiered on September 30, 1962

with 29 episodes premiered on September 29, 1963

with 33 episodes premiered on September 6, 1964

with 32 episodes premiered on September 12, 1965

with 30 episodes premiered on September 11, 1966

with 28 episodes premiered on September 10, 1967

with 28 episodes premiered on September 29, 1968

with 22 episodes premiered on September 28, 1969

with 22 episodes premiered on September 20, 1970

with 20 episodes premiered on October 7, 1971

with 24 episodes premiered on September 16, 1972