Barnaby Jones (1973)

Barnaby Jones features Buddy Ebsen and Lee Meriwether as a father-daughter-in-law duo operating a private detective agency in Los Angeles. Airing on CBS from January 28, 1973, to April 3, 1980, the series started as a midseason replacement and quickly gained popularity. The inaugural episode, "Requiem for a Son," included a guest appearance by William Conrad, who portrayed Frank Cannon. The two shows notably intersected in 1975 with a thrilling two-part crossover titled "The Deadly Conspiracy," further intertwining their narratives and engaging audiences.