Season 1 of Mannix premiered on Sep 16, 1967
Season 2 of Mannix premiered on Sep 28, 1968
Season 3 of Mannix premiered on Sep 27, 1969
Season 4 of Mannix premiered on Sep 19, 1970
Season 5 of Mannix premiered on Sep 15, 1971
Season 6 of Mannix premiered on Sep 17, 1972
Season 7 of Mannix premiered on Sep 16, 1973
Season 8 of Mannix premiered on Sep 22, 1974