Kate's Bachelor Butter - S2-E10
Visible crew/equipment: Kate has all of her own kitchen things in place at H-D-L, and she tells the men to fill the "kettle" up to the dent for boiling. When Kate asks Mr. Kimberly if he's sure the stovepipe is fixed, there are two chalk T-marks visible on the floor.
When You Get Back to Mars, Are You Going to Get It - S3-E24
Visible crew/equipment: When Tim and Martin are carrying Andromeda to the bedroom and Martin opens the door with his Martian finger, the crewmember actually opening the door can be seen on the hinged side of the door. The crewmember continues to move in that space for about 3 seconds during the scene. (00:10:00)
Visible crew/equipment: After Graig returns Patty's math book, Cathy tries to use the pamphlet's rules as she follows Craig. When Craig thanks Cathy for helping him with Latin, the boom mic repeatedly pops up into view in the bottom right corner of the screen. (00:18:10)