Season
- Season 5 1975-09-10
- Season 4 1974-09-11
- Season 3 1973-09-12
- Season 2 1972-09-13
- Season 1 1971-09-14
- Season 0 1971-03-26
Episode
- Episode 1: Kelly's Song
- Episode 2: The Hit Man
- Episode 3: Voice From the Grave
- Episode 4: Lady in Red
- Episode 5: The Deadly Trail
- Episode 6: The Exchange
- Episode 7: The Avenger
- Episode 8: A Killing in the Family
- Episode 9: Flashpoint
- Episode 10: The Man Who Couldn't Forget
- Episode 11: The Sounds of Silence
- Episode 12: The Prisoner
- Episode 13: Daddy's Little Girl
- Episode 14: The Conspirators
- Episode 15: Coffin Corner
- Episode 16: Perfect Fit for a Frame
- Episode 17: Killer On the Hill
- Episode 18: Missing at FL307
- Episode 19: The Set Up
- Episode 20: The Investigator
- Episode 21: Lady On the Run
- Episode 22: Vengeance
- Episode 23: Tomorrow Ends at Noon
- Episode 24: Search and Destroy
Cannon Season 4 The Investigator
Cannon is a CBS detective television series produced by Quinn Martin which aired from March 26, 1971 to March 3, 1976. The primary protagonist is the title character, private detective Frank Cannon, played by William Conrad. He also appeared on two episodes of Barnaby Jones.
Cannon is the first Quinn Martin-produced series to be aired on a network other than ABC. A "revival" television film, The Return of Frank Cannon, was aired on November 1, 1980. In total, there were 124 episodes.
