Boon(1986)

Certified public accountant Andy Barker reluctantly becomes a private investigator after he is mistaken for the former office tenant, who was a private eye.

A Chicago-based wizard works as a private investigator.

Despite their opposing personalities, a talented but directionless P.I. who is the black sheep of his family begrudgingly agrees to work as the in-house investigator for his overbearing mother, a successful attorney reeling from the recent dissolution of her marriage.

In the fictional town of Neptune, California, student Veronica Mars progresses from high school to college while moonlighting as a private investigator under the tutelage of her detective father.

Victims of romance scams try to reclaim their lives with help from "The Tinder Swindler" target Cecilie Fjellhøy and private investigator Brianne Joseph.

Small & Frye is an American television sitcom about a pair of private detectives, one of whom has the involuntary power to shrink to a small size. Produced by Walt Disney Productions, this series was broadcast on CBS in 1983, but only lasted for six episodes.

Adrian Monk was once a rising star with the San Francisco Police Department, legendary for using unconventional means to solve the department's most baffling cases. But after the tragic (and still unsolved) murder of his wife Trudy, he developed an extreme case of obsessive-compulsive disorder. Now working as a private consultant, Monk continues to investigate cases in the most unconventional ways.

Family-based sitcom set in the capital of British Pakistan - Sparkhill, Birmingham. Citizen Khan follows the trials and tribulations of loud-mouthed, tight-fisted, self-appointed community leader Mr Khan and his long suffering family, wife Mrs Khan and daughters Shazia and Alia.

A.J. Simon is a polished fellow with a taste for classic cars and tailored suits. Rick Simon is his less refined (but still pleasant) older brother who has a taste for cowboy boots and four-wheel drive pickups. The two of them live in San Diego, where they own a private detective agency.

Checkmate is an American detective television series starring Anthony George, Sebastian Cabot, and Doug McClure. The show aired on CBS Television from 1960 to 1962 for a total of 70 episodes and was produced by Jack Benny's production company, "JaMco Productions" in co-operation with Revue Studios. Guest stars included Charles Laughton, Peter Lorre, and Lee Marvin, among many other commensurately prominent performers.

Buddy Faro was the best private detective in the business, until he disappeared in 1978 after a case went bad. Twenty years later, he's brought back to Los Angeles by private detective Bob Jones and they reopen Buddy Faro Investigations.

Private detective Mike Hammer hunts down criminals on the mean streets of New York City.

Investigator Alexa Crowe, cannot help fighting the good fight – whether it is solving murders or combatting the small frustrations of everyday life. Fearless and unapologetic, Alexa's unique skills and insights into the darker quirks of human nature, allows her to provoke, comfort and push the right buttons as she unravels the truth behind the most baffling of crimes.

The Outsider was the story of David Ross, a go-it-alone private investigator who's always where the action is. Darren McGavin played Ross, a man living in an off-beat, always-dangerous world. The series aired for one season on NBC and was a precursor of sorts to The Rockford Files in that it featured a loner private detective who had previously done time in prison for a crime he didn't commit and who never quite fit into a rapidly changing environment.

My Friend Tony is an American crime drama that aired on NBC in 1969. The pilot originally aired as "My Pal Tony" on The Danny Thomas Hour on March 4, 1968.

Sons of Thunder is a television show that ran from March to April 1999 on CBS. It was a spin-off of Walker, Texas Ranger.

The hilarious, wacky investigator and his pal Spike attempt to solve a series of baffling cases involving missing or stolen animals.

Mannix is an American television detective series that ran from 1967 through 1975 on CBS. Created by Richard Levinson and William Link and developed by executive producer Bruce Geller, the title character, Joe Mannix, is a private investigator. He is played by Mike Connors. Mannix was the last series produced by Desilu Productions.

A formerly blacklisted spy uses his unique skills and training to help people in desperate situations.