Visible crew/equipment: At about 30 minutes into the episode, right after Cal says: "if Jeffrey knows about priox, he's going to jail. But I'm gonna be damn sure before I send him there", you can see a hand in the top right corner of the screen.
Visible crew/equipment: At the end of the episode, when Alicia is listening to the audio recording on her laptop in bed, you can see the hand of a crewmember on the corner of the white cupboard at the left side of the screen. (00:42:45)
Home Is Where the Heart Stops - S1-E7
Visible crew/equipment: When Castle and Beckett step into the elevator whilst talking about The New York Review of Books, a cameraman is reflected in the left door of the elevator as it closes and the scene ends.
Visible crew/equipment: After Echo is extracted from the docks, the reflection of a camera rig can be seen on the side of Langton's van. It's within the last few frames of the shot so you may have to pause it to see.
Visible crew/equipment: In the rec hall, when Kensi feigns sickness while posing as a cadet the gunman jumps off the stage, and as Kensi bends over the small rectangular bulge of her mic pack can be seen at her back. (00:30:25)
Revolution - S1-E5
Visible crew/equipment: When Tara gets into her car after seeing her therapist with Max in the beginning of the episode, watch closely when the camera moves up to the side of Tara's car. If you look at the bottom-left corner of the screen, you can see the top of a crew-member's face and some camera equipment reflected in the driver's side window right before the scene changes. (00:05:40)