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Banacek is an American detective TV series starring George Peppard that aired on the NBC network from 1972 to 1974. The series was part of the rotating NBC Wednesday Mystery Movie anthology. It alternated in its time slot with several other shows but was the only one to last beyond its first season.

Dellaventura is a former cop, now a private eye, who helps people when the law can't.

Detective Goro Nanase and his colleagues of "Akatsuka Detective Office" are based in Shimo-Akazuka of Itabashi-ku, Tokyo. The detectives take on a string of challenging cases that no one else wants to take on.

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".

Laura Holt, a licensed private detective, opens a detective agency but finds that potential clients refuse to hire a woman, however qualified. To solve the problem, Laura invents a fictitious male superior whom she names Remington Steele. Through a series of events that unfold in the first episode, "License to Steele," a former thief and con man, whose real name is never revealed, assumes the identity of Remington Steele. Behind the scenes, Laura remains firmly in charge.

The adventures of an irreverent private detective, while he is dealing with economic problems.

Sherlock Holmes uses his abilities to take on cases by private clients and those that the Scotland Yard are unable to solve, along with his friend Dr. Watson.

Randall and Hopkirk (Deceased) is a British private detective television series. In the initial episode Hopkirk is murdered during an investigation, but returns as a ghost. Randall is the only main character able to see or hear him, although certain minor characters are also able to do so in various circumstances throughout the series.

Stu Bailey and Jeff Spencer are the wisecracking, womanizing private-detective heroes of this Warner Brothers drama. They work out of an office located at 77 Sunset Strip in Los Angeles, California, right next door to a snazzy restaurant where Kookie works as a valet. The finger-snapping, slang-talking Kookie occasionally helps Stu and Jeff with their cases, and eventually becomes a full-fledged member of the detective agency. Rex Randolph and J.R. Hale also join the firm, and Suzanne is their leggy secretary.

Gabriel's Fire is an American television series that ran on ABC in the USA in 1990–1991. A revamped version of the series, entitled Pros and Cons, aired briefly the following season.

Cranky but likable L.A. PI Jim Rockford pulls no punches (but takes plenty of them). An ex-con sent to the slammer for a crime he didn't commit, Rockford takes on cases others don't want, aided by his tough old man, his lawyer girlfriend and some shady associates from his past.

From England to Egypt, accompanied by his elegant and trustworthy sidekicks, the intelligent yet eccentrically-refined Belgian detective Hercule Poirot pits his wits against a collection of first class deceptions.

Toronto’s only female private detective in the 1920s takes on the cases the police don’t want or can’t handle. From airplanes and booze running to American G-men, Communists and union busters, Frankie’s fearless sense of adventure gets her into all kinds of trouble, but she always manages to find her way out.

A war veteran turned private detective operates out of a tiny office in London’s Denmark Street. Although wounded both physically and psychologically, his unique insight and background as a military police investigator prove crucial in solving complex crimes that have baffled the police. Based on the bestselling novels written by J.K. Rowling under the pseudonym Robert Galbraith.

Tenspeed and Brown Shoe is an American detective/comedy series originally broadcast by the ABC network between January and June 1980. The series was created and executive produced by Stephen J. Cannell.

Mystery and suspense series based on Robert Parker's "Spenser" novels. Spenser, a private investigator living in Boston, gets involved in a new murder mystery each episode.

New York, 1896. Police commissioner Theodore Roosevelt brings together criminal psychologist Dr. Laszlo Kreizler, newspaper illustrator John Moore and secretary Sara Howard to investigate several murders of male prostitutes.

Nice Guy Eddie

Detective Mike Hammer uses his savvy grit against deceptive enemies in Southern California.

Baywatch Nights is an American police and science fiction drama series that aired in syndication from 1995 to 1997. Created by Douglas Schwartz, David Hasselhoff, and Gregory J. Bonann, the series is a spin-off from the popular television series, Baywatch.