1967 | 14 Episodes

Season 0 of Rowan & Martin's Laugh-In premiered on September 9, 1967.

1968 | 15 Episodes

Season 1 of Rowan & Martin's Laugh-In premiered on January 22, 1968.

1968 | 26 Episodes

Season 2 of Rowan & Martin's Laugh-In premiered on September 16, 1968.

1969 | 26 Episodes

Season 3 of Rowan & Martin's Laugh-In premiered on September 15, 1969.

1970 | 26 Episodes

Season 4 of Rowan & Martin's Laugh-In premiered on September 14, 1970.

1971 | 24 Episodes

Season 5 of Rowan & Martin's Laugh-In premiered on September 13, 1971.

1972 | 24 Episodes

Season 6 of Rowan & Martin's Laugh-In premiered on September 11, 1972.