1971 | 15 Episodes

Season 1 of The Onedin Line premiered on October 15, 1971.

1972 | 14 Episodes

Season 2 of The Onedin Line premiered on September 17, 1972.

1973 | 13 Episodes

Season 3 of The Onedin Line premiered on October 21, 1973.

1976 | 10 Episodes

Season 4 of The Onedin Line premiered on April 25, 1976.

1977 | 10 Episodes

Season 5 of The Onedin Line premiered on June 26, 1977.

1978 | 10 Episodes

Season 6 of The Onedin Line premiered on July 16, 1978.

1979 | 10 Episodes

Season 7 of The Onedin Line premiered on July 22, 1979.

1980 | 9 Episodes

Season 8 of The Onedin Line premiered on August 31, 1980.