Mannix aired on CBS from September 1967 through April 1975 and included 194 episodes over 8 seasons.
The series starred Mike Connors as Joe Mannix, a Los Angeles private investigator who initially worked for a high-tech (for the 1960s) firm before opening up his own office.
At the time, Mannix was considered one of the most violent shows on television with Joe Mannix getting beaten or shot several times each season. It is rather tame by today's standards.
Mannix was created by Richard Levinson and William Link, the creative force behind Columbo and Murder, She Wrote and others.
Original air dates: 09/16/1967 to 03/16/1968
Original air dates: 09/28/1968 to 04/12/1969
Original air dates: 09/27/1969 to 03/21/1970
Original US air dates: 09/19/1970 to 03/13/1971
Original US air dates: 09/15/1971 to 03/08/1972
Original US air dates: 09/17/1972 to 03/11/1973
Original US air dates: 09/16/1973 to 03/31/1974
Original US air dates: 09/22/1974 to 04/13/1975