Hawaii Five-0 (1968) - 10 major mistakes

Continuity: 9-4 "Man on Fire": McGarrett's blackboard already lists plutonium as the poison source before Dr. Ormsbee enters to inform him that plutonium was the poison source.

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.

Visible crew/equipment: Several times in this episode, the side of McGarrett's shiny black Mercury sedan mirrors an entire bank of big square studio light reflectors.

Plot hole: 8-22 "Love Thy Neighbor, Take His Wife": The police cars speed to Tanaka's house with their sirens screaming, warning him in plenty of time to allow him to escape. Apparently these guys never heard of the law-enforcement standard "silent approach."

Plot hole: McGarrett is hunting for heroin dealers who've laced the drug with arsenic. Yet when he and Chin Ho arrest Harry Parch and find his stash, McGarrett performs the TV cop cliché of sticking his finger into the white powder and tasting it. Even that small a dose of arsenic could be lethal, and seasoned cop that he is, McGarrett would know that.

Continuity: As Kono talks to Johnny Kalama in the students' apartment, an orange lava lamp sits on the shelf between them. Each time the camera angle reverses, the wax bubbles in the lamp are very noticeably in different positions and configurations.

Plot hole: The first murder victim is so dim-witted that it strains the viewer's credulity. Her creepy blind date, who plans to kill her, is wearing surgical gloves already - but somehow she never notices.

Factual error: Don, who professes to be a Buddhist, chants in the jail cell and refers to Buddha as "god." Adherents to this religion do not worship the Buddha and never refer to him as god. Later on, Don chants to Krishna, a Hindu deity not even remotely connected with Buddhism. So, just what is Don - a Buddhist or a Krishna?

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.

Deliberate "mistake": 9-12 "The Bells Toll at Noon": When McGarrett picks up Danny and drives away in his Mercury Grand Marquis, the rear view mirror is missing, probably removed to prevent it from blocking the actors' faces. It reappears later on.