Continuity mistake: At the end, McGarrett hands Filer an orange monopoly "Go Directly to Jail" card. In Filer's hand, the card is white. He hands it back to McGarrett and it's orange again.
Continuity mistake: McGarrett's left hand rests on the side of the large multi-line telephone as he makes his call. The camera angle reverses, and his hand instantly jumps to a different position, resting on top of the phone. (00:41:00)
Revealing mistake: When Sally is driving the blue station wagon full of singing kids, several light reflections on the side of the car never move at all, revealing that it's really a stationary mock-up sitting on a soundstage. (00:42:30)
Visible crew/equipment: During McGarrett and Chin's interview with the Chinese bookie, the boom dips into the shot several times at the very top of the screen. (00:20:20)
Visible crew/equipment: The boom shadow is moving back and forth at the top of the door when McGarrett and Danno arrest Wilke. (00:48:00)
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)
Revealing mistake: When McGarrett and the modern-day posse find Frank's euthanized horse, the "dead" animal is quite visibly (and vigorously) breathing. (00:45:20)
Continuity mistake: Stock footage turns McGarrett's 1970 Mercury into his old 1966 model when he drives out of the Iolani Palace parking lot. (00:31:00)
Visible crew/equipment: When the bad guys pull up to the loading dock warehouse, the door of their shiny black sedan reflects several large round studio lights. (00:32:15)
The Bomber and Mrs. Moroney - S3-E22
Continuity mistake: The bomber wants revenge on Danno for killing his brother, Joey Collins, whose death is recapped in flashbacks to a first season episode in which Danno first killed someone in the line of duty. But in that episode, Joey's name wasn't Joey or Collins - it was Thad Vaughn. (00:22:00)
The Bomber and Mrs. Moroney - S3-E22
Continuity mistake: The HPD snipers watch McGarrett's office window, trying to get a clear shot at Collins. In camera views from inside the office, there's a coat rack with a hanger on it standing in front of the window. But in all the shots from the snipers' POV, the coat rack isn't there. (00:40:00)
The Grandstand Play (1) - S3-E23
Continuity mistake: The monogrammed handkerchief has cursive initials the first two times we see it. But when Lon gives it to McGarrett, the initials are in block letters.
Highest Castle, Deepest Grave - S4-E1
Revealing mistake: Stock footage turns the doctor's black 1970 Lincoln Continental into a 1950s model when it goes over the cliff, crashes and burns. (00:15:50)
No Bottles...No Cans...No People - S4-E2
Factual error: Johnny makes two direct-dial calls from his car phone and is instantly connected - something not yet possible in 1971. His calls would have to go through a mobile operator before connecting. (00:32:30)
3,000 Crooked Miles To Honolulu - S4-E4
Audio problem: During McGarrett's second visit to question the professor, in the midst of their conversation, something off-camera makes a very loud thump. Professionals that they are, Buddy Ebsen and Jack Lord carry on with their lines as though nothing has happened. But this looks just a bit odd, because you wonder why their characters aren't curious about the noise. (00:34:10)
3,000 Crooked Miles To Honolulu - S4-E4
Factual error: The professional hitmen murder their victim in the hospital with a silenced .38 revolver. You'd think the mob would know better. Silencers have absolutely no effect on revolvers. They only work on closed-chambered, automatic weapons. (00:46:20)
...And I Want Some Candy and a Gun That Shoots - S4-E6
Continuity mistake: Danno boards the helicopter wearing a brown suit, but arrives wearing a Hawaiian shirt. When he gets out of the aircraft a few shots later, though, he's back in the brown suit, with no time to have changed.
Air Cargo -- Dial for Murder - S4-E7
Visible crew/equipment: When the bad guys enter the print shop, the boom shadow moves across their heads and onto the wall behind them. (00:11:10)
Air Cargo -- Dial for Murder - S4-E7
Visible crew/equipment: In the office, when McGarrett hands Chin Ho the murdered cop's notebook, the microphone shadow can be seen moving across the set wall at the upper left of the screen. (00:14:15)
Air Cargo -- Dial for Murder - S4-E7
Visible crew/equipment: The crooks drive off in their blue '56 Chevy, capturing the reflection of a row of studio lights in the car's shiny side panel as it pulls away. (00:34:15)
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.