The show stars Robert Wagner and Stefanie Powers as Jonathan and Jennifer Hart, respectively, a wealthy couple who lead a glamorous jetset lifestyle and regularly find themselves working as unpaid detectives in order to solve crimes in which they become embroiled.

I take care of them — which ain't easy; 'cause their hobby is — murder.Several early first season episodes originally included a slightly differently worded intro, with some alternative accompanying shots.

This is replaced with the standard first season opening in syndication and later digital releases: This is my boss — Mr. Jonathan Hart, self-made millionaire and quite a guy.This here's his wife, Mrs. H — yeah, she's gorgeous, but don't let her looks deceive you.Oh, and me?

I'm their chauffeur... among other things, and it's my job to try and take care of them — which ain't easy; 'cause when they meet... it's murder.Beginning with Season 2 onward, the opening lines were slightly changed: This is my boss — Jonathan Hart, a self-made millionaire.

Living the jetset lifestyle, the Harts often find themselves involved in cases of smuggling, theft, corporate and international espionage and, most commonly, murder.

At their opulent Bel Air estate, they are assisted by Max (Lionel Stander), their shared mansion's loyal, gravel-voiced majordomo, who also helps with their cases.

The opening credits sequence (stock footage drawn from the series pilot) shows Jonathan Hart driving a red Dino 246 GTS.

[1][2][3] Screenwriter and novelist Sidney Sheldon had originally written a script in the early 1970s for CBS, titled Double Twist, about a married couple who were spies.

The script remained unfilmed for several years until producers Aaron Spelling and Leonard Goldberg decided to update the idea for a potential television series.

However, Grant (seventy-five years old at the time) had effectively retired from acting over a decade earlier; his last film, Walk, Don't Run, had been released in 1966.

They then decided to find a younger actor who might embody the same style, zest and persona that Grant was famous for, and offered the role to Robert Wagner.

Initial choices for the role of Jennifer Hart included Suzanne Pleshette, Kate Jackson (months removed from ending a three-year turn starring as detective Sabrina Duncan on Charlie's Angels) and Lindsay Wagner (no relation), but Wagner suggested Stefanie Powers, who had previously worked with him when she made a guest appearance in an episode of his action-adventure series It Takes a Thief in 1970.

[5] Wagner wanted Sugar Ray Robinson to portray Max, but ABC-TV executives were worried about a black man as majordomo for a rich white couple.

The first five aired on NBC; the final three were broadcast on The Family Channel: Lionel Stander reprised his role as Max in five of the movies before his death from lung cancer on November 30, 1994.