Kiss the Queen Goodbye - S2-E25
Audio problem: At the Governor's pageant, a group of young children sings and dances to ukulele music. But the song is just a little too noticeably dubbed in: none of the kids' lips are moving. (00:30:10)
Visible crew/equipment: The shadow of the boom mike's pole rigging follows McGarrett as he passes the ambulance and coroner's wagon. It disappears when the shot cuts to a different angle. (00:37:30)
Visible crew/equipment: 7-1 "The Young Assassins": The People's Attack Group van speeds past the camera and briefly captures the reflections of several film crew members. (00:35:05)
A Bullet for McGarrett - S2-E6
Deliberate mistake: Han is shot several times as he dives from the board into the pool. But when his body is shown slowly floating back to the surface, there's not a trace of blood on him or in the water. (00:03:30)
A Bullet for El Diablo - S6-E10
Factual error: Che makes the voice-print comparison using a polygraph machine - a device used for lie detection, not voice analysis. (00:36:30)
Revealing mistake: During the bunker siege, footage recycled from an earlier episode creates the sudden appearance of a white station wagon parked beside the police cruisers that isn't there in all the other shots. (00:41:40)
The Clock Struck Twelve - S5-E12
Character mistake: After distracting the guards, Danno tosses a grappling hook onto a ledge and climbs the side of the building. He then goes about his business, carelessly leaving the hook and rope dangling from the ledge for all to see. For a seasoned 5-0 team member, that's pretty sloppy covert operations. (00:22:40)
Didn't We Meet at a Murder? - S4-E22
Character mistake: When Chin Ho reads Wellman's license plate number to the police dispatcher and repeats it to confirm, he recites a different number the second time. (00:30:05)
Revealing mistake: Near the end, McGarrett's boat is preceded by the wake of another boat that isn't there when the angle of the shot reverses. The wake belongs to the vessel carrying the camera crew. (00:46:45)
Revealing mistake: When the underwater camera breaks the surface in what is supposed to be open ocean, the domed roof of a Hawaiian aquatic theme park building is visible in the background.
Continuity mistake: Danno kicks one of the bad guys out of the van, leaving the rear doors swinging open. But when the shot immediately cuts to an exterior view of the speeding van, the doors are tightly shut again. (00:35:00)
Factual error: McGarrett places the kidnappers' ransom tape on the reel-to-reel recorder, and before the tape is threaded or the machine properly turned on, the message immediately starts to play. (00:13:35)
Continuity mistake: When McGarrett and Danno question Frank's daughter, she has her hands clasped in front of her. When the shot cuts, her arms are suddenly extended down at her sides instead. (00:29:50)
The Jinn Who Clears The Way - S5-E5
Factual error: Danno, who's been a cop long enough to know better, reports to McGarrett that the lab has determined Wong's blood type to be AO. Blood is typed as A, B, AB or O. There is no type AO.
Continuity mistake: Kealoha puts his gun back in its shoulder holster before walking a few feet across the parking lot to meet McGarrett. When we cut to a two-shot of them, Kealoha puts his gun away all over again. (00:32:30)
... And They Painted Daisies On His Coffin - S1-E7
Continuity mistake: McGarrett strong-arms Tommy-Tommy, the Hawaiian fence, on the beach, and the guy gets sand all over his face during their scuffle. When McGarrett pulls him to his feet, the sand is still there. But in the next shot, all but a small patch near his temple has disappeared. (00:32:40)
Continuity mistake: Auston leaves the unconscious Dan Williams lying on his back. But in the next shot, Danno's lying on his side. Later, the seriously wounded Danno instantly changes positions between shots several more times, switching from face down to face up on the floor. (00:02:30 - 00:32:00)
Continuity mistake: Throughout first season: Due to stock footage spliced in from the pilot film, McGarrett's '68 4-door Mercury sedan often peeled away from the Ionali palace and then turned into a '67 2-door coupe as it cruised down Honolulu's streets.
Continuity mistake: Throughout the episode, Larsen's first name is "Dan." But in the end credits, he's listed as "Steve." (00:49:00)
Factual error: Kono gives the operator a six digit number for the public phone. By 1970, when this episode was shot, Hawaii had long since initiated seven digit phone numbers, as had most of the US more than a decade earlier. (00:30:30)
Answer: He was fired. He never really appreciated his character. He felt Kono was portrayed as a big dumb Hawaiian and that the stereotype was racist. He also felt underutilized. He was fired after a heated argument with the show's publicist regarding his character. It seems there's not much details given regarding the incident or the firing, so it's seems possible he upset the show's producers as well.
Bishop73
No he said something derogatory about one of the Jewish producers that's why he was fired.