Barnaby Jones (Season 1)

Barnaby Jones is a television detective series starring Buddy Ebsen and Lee Meriwether as father- and daughter-in-law who run a private detective firm in Los Angeles. The show ran on CBS from January 28, 1973 to April 3, 1980, beginning as a midseason replacement. William Conrad guest starred as Frank Cannon of Cannon on the first episode of Barnaby Jones, "Requiem for a Son" and the two series had a two-part crossover episode in 1975, "The Deadly Conspiracy".

Requiem for a Son (Episode 1)
Writer: Edward Hume
Air date: 1973-01-28
Runtime: 46 min
Overview: Detective Barnaby Jones comes out of retirement to solve his son's murder with some help from fellow detective Frank Cannon.
To Catch a Dead Man (Episode 2)
Writer: Benjamin Masselink
Air date: 1973-02-04
Runtime: 46 min
Overview: A sportsman's plans for a new life begin with murder.
Sunday: Doomsday (Episode 3)
Writer: Morton S. Fine
Air date: 1973-02-25
Runtime: 46 min
Overview: Barnaby engages in a game of cat-and-mouse with a murderer who blames him for his jail time
The Murdering Class (Episode 4)
Writer: Robert Sherman
Air date: 1973-03-04
Runtime: 46 min
Overview: Barnaby investigates a murder at a prep-school.
Perchance to Kill (Episode 5)
Writer: Robert C. Dennis
Air date: 1973-03-11
Runtime: 46 min
Overview: An affair leads to an accidental murder.
The Loose Connection (Episode 6)
Writer: Edward J. Lakso
Air date: 1973-03-18
Runtime: 46 min
Overview: What's the perfect heroin-smuggling plot? Hide it in the radiator of a car owned by a tourist above suspicion--Barnaby Jones. When the shipment is replaced by sugar, Barnaby finds himself being threatened by both shipper and receiver, desperately trying to find the truth.
Murder in the Doll's House (Episode 7)
Writer: Benjamin Masselink
Air date: 1973-03-25
Runtime: 46 min
Overview: An author whose novels feature his hometown disappears; the publisher hires Barnaby to find the last chapter of the newest novel. A senile aunt introduces Barnaby to the "family" in her dollhouse, providing the clue to more than one murder.
Sing a Song of Murder (Episode 8)
Writer: Martin Roth
Air date: 1973-04-01
Runtime: 46 min
Overview: "Rock star found with head smashed in empty pool" That headline would end the gravy train so his managers fake a kidnapping to salvage something, but they are unaware of a witness.
See Some Evil... Do Some Evil (Episode 9)
Writer: George F. Slavin
Air date: 1973-04-08
Runtime: 46 min
Overview: A blind pianist whose sight has been restored kills his blackmail victim just before Barnaby arrives. Barnaby suspects him but must prove he can see.
Murder-Go-Round (Episode 10)
Writer: Steve Fisher
Air date: 1973-04-15
Runtime: 46 min
Overview: A suspicious hit and run brings Barnaby to a little town where sudden riches are obvious. "Town council meetings" are a cover for plotting murder, and Barnaby is in their sights.
To Denise, with Love and Murder (Episode 11)
Writer: Robert C. Dennis
Air date: 1973-04-22
Runtime: 46 min
Overview: A murdered mistress and a missing wife bring Barnaby Jones onto the case. The problem? Two weeks have passed, and the killer has covered his tracks.
A Little Glory, a Little Death (Episode 12)
Writer: Shirl Hendryx
Air date: 1973-04-29
Runtime: 46 min
Overview: Barnaby investigates the death of a woman who was killed in a car accident after the woman's daughter claims that it was no accident. An aging movie star with something to hide is Barnaby's number one suspect.
Twenty Million Alibis (Episode 13)
Writer: Robert Hamner
Air date: 1973-05-06
Runtime: 46 min
Overview: Barnaby investigates the theft of a million dollar necklace and the murder of the butler who unwittingly walked in on the thief. The leading suspect is a retired jewel thief with a rock solid alibi-he was on TV at the time of the theft.