Basket Case - S3-E14
Visible crew/equipment: After Magnum annoys Higgins with the bouncing basketball he asks if the uniforms have arrived, and as Higgins starts walking the white T-mark is visible on the floor in front of the chalkboard. (00:08:55)
Starring: Tom Selleck, Roger E. Mosley, John Hillerman, Larry Manetti
Basket Case - S3-E14
Visible crew/equipment: After Magnum annoys Higgins with the bouncing basketball he asks if the uniforms have arrived, and as Higgins starts walking the white T-mark is visible on the floor in front of the chalkboard. (00:08:55)

Don't Eat the Snow in Hawaii - S1-E1
Continuity mistake: When Magnum drops the ring out of the envelope, nothing is near it as it's shaking. In the close up shot, it's next to keys. (00:44:20)
Trivia: At the awards ceremony, three men seated at a table together resemble three detectives from 1970s TV shows. Detective Mike Stone (played by Karl Malden) from ABC's Streets of San Francisco; Detective Frank Columbo (played by Peter Falk) from NBC's Columbo; and Detective Theo Kojak (played by Telly Savalas) from CBS's Kojak. (00:07:20)