Other mistake: A man kidnaps an IT tech and steals his uniform. The IT guy is quite large - at least a XXXL if not more. When the impostor IT guy walks into HPD Headquarters, he has a very well fitting IT uniform shirt. And he is of average build -maybe a medium size. There is no way he could be wearing the real IT guy's shirt without it looking like a tent.
Magnum P.I. (2018)
1 other mistake in Better Watch Out - chronological order
Directed by: Justin Lin
Starring: Jay Hernandez, Zachary Knighton, Perdita Weeks, Nadine Nicole
The Day Danger Walked In - S3-E5
Factual error: Higgins, Thomas, TC and Rick are locked in a freezer. Their barber friend is tapping his horn in "a pattern" Higgins says is Morse code, and announces that he tapped "move back." Not really. I know Morse Code. All I got (along with a few undecipherable things) was TOERT NMU ETM CEA OFJ DER WK. No way that spells "Move Back."
The Cat Who Cried Wolf - S1-E7
Detective Gordon Katsumoto: Why are you following me?
Thomas Magnum: Uh...
Detective Gordon Katsumoto: Word of advice: if you wanna tail someone, don't do it in a red Ferrari. (00:30:00)
Trivia: The original TC, Roger E. Mosley, shows up in 2 episodes in the series. The first is S1-E18 - A Kiss Before Dying and the other is in S3-E5 The Day Danger Walked In.