1979 | 22 Episodes

Season 1 of Trapper John, M.D. premiered on September 23, 1979.

1980 | 18 Episodes

Season 2 of Trapper John, M.D. premiered on November 23, 1980.

1981 | 25 Episodes

Season 3 of Trapper John, M.D. premiered on October 4, 1981.

1982 | 22 Episodes

Season 4 of Trapper John, M.D. premiered on September 26, 1982.

1983 | 22 Episodes

Season 5 of Trapper John, M.D. premiered on October 2, 1983.

1984 | 23 Episodes

Season 6 of Trapper John, M.D. premiered on September 30, 1984.

1985 | 19 Episodes

Season 7 of Trapper John, M.D. premiered on October 6, 1985.