Cannon (1971)

Cannon, a detective drama that aired on CBS from 1971 to 1976, features the formidable private investigator Frank Cannon, portrayed by William Conrad. Known for his sharp instincts and relentless pursuit of justice, Cannon solves cases that often intertwine with the darker sides of society. Notably, it was the first Quinn Martin production to break away from ABC, showcasing its unique storytelling approach. The series consists of 124 episodes, and a TV film titled The Return of Frank Cannon followed in 1980, reviving the beloved character for fans.