2005 | 1 Episodes

Season 0 of One Day at a Time premiered on February 22, 2005.

1975 | 15 Episodes

Season 1 of One Day at a Time premiered on December 16, 1975.

1976 | 24 Episodes

Season 2 of One Day at a Time premiered on September 28, 1976.

1977 | 24 Episodes

Season 3 of One Day at a Time premiered on September 27, 1977.

1978 | 26 Episodes

Season 4 of One Day at a Time premiered on September 18, 1978.

1979 | 26 Episodes

Season 5 of One Day at a Time premiered on September 30, 1979.

1980 | 21 Episodes

Season 6 of One Day at a Time premiered on November 9, 1980.

1981 | 25 Episodes

Season 7 of One Day at a Time premiered on October 11, 1981.

1982 | 26 Episodes

Season 8 of One Day at a Time premiered on September 26, 1982.

1983 | 23 Episodes

Season 9 of One Day at a Time premiered on October 2, 1983.