When Che Fong says he's found evidence of a radio receiver at the bombing, Danny says "Steve was right." in fact, it was Duke (who's standing next to Danny) who suggested the bomb might be radio-activated.
When Caldwell (Ned Beatty) is driving away from the Kilauea Towers with Cory (Elaine Joyce) as his hostage, the hubcaps on his car are a solid silver metallic color. But when Danny Williams later shoots out one of those tires during the chase, the closeup of the blown tire shows a hubcap with a red-color emblem in the center.
When Caldwell's car is being driven off the road at the end after losing a tire, the driver is clearly a stunt man and not Ned Beatty - he has a much darker complexion than Beatty and black hair, compared to Beatty's more light brown or blond hair.
In the opening scene of the episode, call girl Alison Moana's customer "Jim" enters her apartment. As he walks into the room, the shadow of the boom microphone can be seen on the upper part of the wall parallel to the door.