1. 1978
2. 1968
3. 1974

The show first appeared in 1968, becoming one of the strongest police dramas in TV history.

1. six seasons
2. eight seasons
3. 12 seasons

With a whopping 12 seasons, "Hawaii Five-0" lasted far longer than most TV shows. Its longevity wouldn't be topped for years.

1. "Magnum P.I."
2. "NCIS"
3. "Law & Order"

In 2003, "Law & Order" finally surpassed "Hawaii Five-0" as the longest-running crime drama. The former ran for 20 seasons and 456 episodes.

1. NBC
2. CBS
3. ABC

The show had consistently high rankings that made it a winner for CBS.

1. police code for murder
2. Hawaii was the 50th state.
3. slang for cops

The "Five-0" refers to Hawaii's statehood -- the island was the 50th state added to the U.S.

1. Al Harrington
2. James MacArthur
3. Jack Lord

Jack Lord was McGarrett. Lord also had a role as Felix Leiter in the first "James Bond" movie.

1. state police force
2. Oahu Police Department
3. Honolulu Police Department

McGarrett leads a small team of state police officers who investigate a wide variety of crime scenes.

1. Supporting Actor in a Drama
2. Outstanding Musical Composition
3. Drama Series

It won for Outstanding Musical Composition, thanks to the hard work of Morton Stevens.

1. inexperience
2. heat
3. distractions

In the late 60s and early 70s there was very little filming being done in Hawaii, meaning that the locals who were hired to help often had no clue as to what they were supposed to be doing.

1. Steve McGarrett
2. Daniel Williams
3. Duke Lukela

McGarrett often uttered the phrase at the end of episodes, in a sign that the team had done its job by catching and jailing the bad guys.

1. Hawaii
2. Los Angeles
3. San Diego

True to the show's name, almost all of the shooting was done on location in Hawaii.

1. 1998
2. 2010
3. 2012

The relaunched series debuted in 2010 and proved successful -- 2016 marked the beginning of the seventh season.

1. Zulu
2. Danno
3. Chin Ho Kelly

Kalakaua was Zulu, who was a prominent character during the first four seasons of the show.

1. Jack Nicholson
2. David Hasselhoff
3. Gary Busey

The wild-eyed Busey was a star of the pilot, and James McArthur returned to play the governor. The pilot never hit broadcast TV.

1. Robert Brown
2. Richard Boone
3. Gregory Peck

Richard Boone, who made a name for himself in dozens of Western films, was the first choice, but he turned down the role.

1. Kono Kalakaua
2. Chin Ho Kelly
3. Danny Williams

Kokua replaced Kalakaua; Kokua lasted for Seasons 5, 6 and 7.

1. one
2. three
3. five

As the show lasted for more than a decade, the casting director went through five different women who played five secretaries.

1. the Joker
2. Tiny
3. Wo Fat

Wo Fat is a spy from the People's Republic of China, and he gives McGarrett fits for years.

1. fast food
2. police officer
3. janitor

He'd been a police officer for nearly two decades before he decided to become an actor.

1. 279
2. 321
3. 346

During the 12-season run, the cast and crew managed to churn out 279 episodes.

1. sheriff's deputy
2. forensic specialist
3. crime scene cleanup

Fong is the forensic specialist who is trained to examine evidence from a scientific perspective.

1. writer
2. director
3. executive producer

Executive producer Leonard Freeman died from heart problems. The rest of the crew had to find a way to fill his considerable shoes for six more seasons.

1. He was simply written out during a contract dispute.
2. He was murdered.
3. The actor died.

Actor Kam Fong got tired of the role and wanted to move on with his career. He asked that his character be murdered during an investigation.

1. Frank Kamana
2. Gov. Paul Jameson
3. Duke Lukela

Denning gave up the easy life of retirement to play the governor. Denning's career started in 1937 and lasted until at least 1980.

1. 11
2. 10
3. All of them.

Danno appeared in 11 of the 12 seasons, after which actor James MacArthur went back to his roots in theater.

1. Season 12
2. Season 10
3. Season 8

Carew didn't appear until the 12th and final season. The characters named Truck and Lori Wilson also didn't appear until the 12th season.

1. It was politically incorrect.
2. It featured a suicide scene.
3. It had accidental nudity.

One person who watched the episode apparently tried to copy a suicide technique featured in the episode; it was never played again.

1. Scott Caan
2. Alex O'Loughlin
3. Daniel Dae Kim

Alex O'Loughlin is McGarrett. The actor has also had roles in "Three Rivers" and "Moonlight," among other productions.

1. suspenders
2. dark suit and tie
3. Hawaiian shirts

His formal suit and tie are unusual in laid-back Hawaii, meaning that McGarrett stands out in a crowd.

1. accountant
2. pro surfer
3. prostitute

Kalakaua, played by Grace Park, is a former professional surfer who gives up the beach bum lifestyle to become a cop.