Visible crew/equipment: After Beaver's bath, when the family has lunch in the kitchen the chalk T-mark is visible on the floor near Beaver, which will be where Ward soon stands. (00:07:30)
Visible crew/equipment: Opening Scene: when Ward leaves the kitchen and comes pack in through the swinging door, you can see the shadow of the camera in the door just as Ward is coming back in.
Visible crew/equipment: When Beaver's class takes the intelligence test, a chalk T-mark is visible on the floor between the wall and Judy's desk. (00:09:40)
Visible crew/equipment: Early in the morning, after Ward and Wally go downstairs to check the trap June walks out of the bedroom (a funny June moment), and when Beaver rushes out carrying the baseball bat, the moving boom mic casts a shadow in the top left corner of the screen. (00:04:20)
Visible crew/equipment: While Wally and Beaver are at Sunday school, June and Ward go to the boys' bedroom to see how messy it is, and two chalk T-marks are visible on the floor where both Ward and June will stand. (00:21:10)
Visible crew/equipment: When Ward tells June he wants to take the boys to Friends Lake, for an overnight camping and fishing trip, as Ward heads for the staircase so he could tell the boys, he passes a piece of filming equipment which is visible at the right side of the screen. (00:08:25)
Visible crew/equipment: When a few of the kids pass the note from Linda to Beaver he puts it in his pocket, then it cuts to the class bell ringing, and there are multiple chalk marks on the floor where Beaver and other kids stand. (00:03:00)
Visible crew/equipment: When Ward enters the house June tells him she just got off the phone with Agnes Haskell, and the moving boom mic casts a shadow at the top of the screen. (00:21:45)
Visible crew/equipment: After Beaver is tossed out of the Blue Moon it cuts to Beaver walking up to Charlie, and the curved chalk actor's mark is visible under the desk, at Beaver's feet. (00:15:45)
Visible crew/equipment: Beaver asks June about some wealthy people in town, and when Ward walks into the kitchen, the moving boom mic casts a shadow at the top, left corner of the screen. (00:11:00)
Visible crew/equipment: After Eddie tells Wally that it once took his father two days to make a breadboard, when it cuts to Beaver walking into the kitchen, the curved chalk actor's mark is visible on the floor where Beaver stops. (00:09:35)
Visible crew/equipment: When Wally and Beaver go downstairs to tell their parents about being at court earlier, Wally stops at the edge of the rug and his curved chalk mark is visible on the bare floor. (00:22:15)
Visible crew/equipment: When Mrs. Bennett shows up the second time and tells June that she'd like to give Beaver a reward, the curved chalk actor's mark is visible on the floor near the staircase, and it's where June will stand after Poncho and his "mother" leave the house. (00:21:05)
Eddie, the Businessman - S6-E6
Visible crew/equipment: June and Ward are in the kitchen, Eddie leaves and Ward and June continue talking about Eddie and Wally getting hired at the dairy. The next scene shows the exterior of the house, and a dark figure is seen walking from the house toward the garage on the left side of the screen.
Visible crew/equipment: In the opening, the camera boom shadow is visible on the door after June enters and Ward enters.
Visible crew/equipment: When Beaver works as caddie the second time, the group are at the 18th hole. As Messrs Langley and Howard walk off-screen to the right, the camera crew's shadows can be seen on the actors' sweaters.