William Conrad starred as Frank Cannon in Cannon, a crime drama that ran on CBS from September 1971 to March 1976 and consisted of 124 episodes over 5 seasons. A made-for-television movie based on the series, The Return of Frank Cannon, aired in 1980.
Cannon was a wealthy private investigator and gourmet chef who lived in a penthouse on the Sunset Strip. His services were expensive but he got results. The series had very high production values. Due to Conrad's rather large size, episodes relied more on plot than action.
An episode of Cannon in the second season featured Barnaby Jones and his daughter-in-law Betty Jones searching for the killer of Barnaby's son (and Betty's husband). The episode actually turned into the pilot episode of the series Barnaby Jones.
Season One (V1)
Original air dates: 03/26/1971 (pilot); 09/14/1971 to 12/07/1971
Season One (V2)
Original air dates: 12/14/1971 to 03/14/1972
The Complete First Season
Season Two (V1)
Original US air dates: 09/13/1972 to 12/13/1972
Season Two (V2)
Original US air dates: 12/20/1972 to 03/21/1973
The Complete Second Season
Original US air dates: 09/12/1973 to 03/20/1974
Original US air dates: 09/11/1974 to 04/02/1975
Original US air dates: 09/10/1975 to 03/03/1976
The Return of Frank Cannon
Original US air date: 11/01/1980