Shows like Magnum P.I.

Hawaii Five-O is an American police procedural drama series produced by CBS Productions and Leonard Freeman. Set in Hawaii, the show originally aired for 12 seasons from 1968 to 1980, and continues in reruns. Jack Lord portrayed Detective Lieutenant Steve McGarrett, the head of a special state police task force which was based on an actual unit that existed under martial law in the 1940s. The theme music composed by Morton Stevens became especially popular. Many episodes would end with McGarrett instructing his subordinate to "Book 'em, Danno!", sometimes specifying a charge such as "murder one".

A former DEA agent forced into early retirement runs a gift shop in in the Philippines. Despite his best efforts to begin a tranquil new life, he’s pulled back into a world of dangerous people and deadly situations, either through his friends in the local police department or running into people from his old life. And the problem is: he likes it.

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

Jack Regan, an unethical officer of the Flying Squad, uses unorthodox methods to pursue criminals with the help of his partner, George Carter.

Detective Cheng is commissioned by Interpol to destroy the Empire of Chaiba, a worldwide criminal organization based in Southeast Asia. He initiates an undercover operation to infiltrate the organization.

Framed for murder, Detective Reno Raines becomes a fugitive bounty hunter who fights crime while trying to clear his name. His troubles began after he testified about police corruption, leading Lt. Donald Dixon to set him up.

Jack Irish is a man getting his life back together again. A former criminal lawyer whose world imploded, he now spends his days as a part-time investigator, debt collector, apprentice cabinet maker, punter and sometime lover – the complete man really. An expert in finding those who don’t want to be found – dead or alive, Jack helps out his mates while avoiding the past. That is until the past finds him.

Danger Man is a British television series which was broadcast between 1960 and 1962, and again between 1964 and 1968. The series featured Patrick McGoohan as secret agent John Drake. Ralph Smart created the programme and wrote many of the scripts. Danger Man was financed by Lew Grade's ITC Entertainment.

In a seemingly quiet country town the newest resident, Detective Inspector Mike Shepherd, finds that murder lurks in even the most homely location.

The New Avengers is a British secret agent fantasy adventure television series broadcast during 1976 and 1977. It is a sequel to the 1960s series The Avengers and was developed by Albert Fennell and Brian Clemens. A joint United Kingdom-France-Canada production, the show picks up the adventures of John Steed and his team of Avengers fighting evil plots and world domination. Whereas in the original series Steed had almost always been partnered with a woman, in the new series he had two partners: Mike Gambit, a top agent, crack marksman and trained martial artist, and Purdey, a former trainee with The Royal Ballet who was an amalgam of many of the best talents from Steed's previous female partners.

The exploits of the Los Angeles–based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.

Streetwise Detective David Starsky partners up with a more intellectual partner, Kenneth 'Hutch' Hutchinson, to protect citizens and patrol the streets of Bay City.