Visible crew/equipment: After we see Marco and Captain Stanley heading up to the roof, it cuts to a shot in the elevator when Roy says "The firemen are working as hard and as fast as they can, to get us down from here," and the crew's moving shadow can be seen on the left, where the camera is located at the elevator doorway.
Visible crew/equipment: At the site of the back hoe accident, after the ambulance arrives, when the father of the girl who's trapped under the back hoe gets up and starts walking away from Roy, the reflection of set array lighting is visible on the surface of Squad 51.
Visible crew/equipment: During the back hoe rescue, the outlines of Johnny's and Roy's mic transmitters alternate between being visible at the front and sides of their shirts.
Visible crew/equipment: Near the end of the episode, when Charlie hitches up The Boat to his pickup truck and drives it away, the reflection of the array set lighting is visible on the pickup's door.
Visible crew/equipment: When the guys are at the gas station with the broken pump nozzle, after Marco and the stretcher are loaded onto the ambulance, the reflection of the location array lighting can be seen on the back of the ambulance, when Johnny shuts its doors.
Visible crew/equipment: When Chet tells Roy that Captain Stanley wants to see him in the office, a tape mark is visible on the floor in front of Cap, just as he tells Roy not to tell the other guys, and then when Roy asks what happened.
Visible crew/equipment: After Roy and John get back to the station, Chet informs Roy that Captain Stanley wants to talk to him, and when Roy's in the office the actor's tape mark is visible on the floor, as Cap tells him not to tell the other guys and when Roy asks what happened.
Visible crew/equipment: After their shift is over, all the guys wait in the apparatus bay for Captain Stanley to come out, and when Medford walks over to them, an actor's tape mark beside Chet's foot and another near Marco's foot are visible on the floor. Then when Cap walks out, another tape mark is visible on the floor in front of Mike's foot.
Visible crew/equipment: When the psychiatrist comes to help at Station 86, as she leans over to clean the man's head wound, the bulging outline of the lav mic transmitter is visible on the back of her blouse.
Visible crew/equipment: At Station 86, when the woman brings in her asthmatic son, and talks to Johnny outside, the bulging outline of the mic transmitter is visible on the back of her blouse. Then later, when Johnny walks over to the boy's bed because the patients are being moved to the chopper, the bulging transmitter outline is now at her side.
Captain Hook - S6-E8
Visible crew/equipment: When Marco is speaking with the deputy at the site of the wrecked chopper, the bulging outline of the mic transmitter is visible on the left side of his shirt, above the belt.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
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