
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)
Continuity mistake: June makes Ward go to school to talk to Mrs. Rayburn. She says Mrs. Rayburn was her teacher and still makes her nervous. In Beaver gets 'Spelled episode, June doesn't recognize the name of Mrs. Rayburn on the flowers. Ward says that the only Mrs. Rayburn he can think of is the principal at school.
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)

Continuity mistake: After Ward puts a new lightbulb in the fridge June stares at the mess Ward made, and the scalloped range hood vent is conspicuously missing, but when Beaver walks into the kitchen, the hood vent is back in its proper place. (00:17:10)
Continuity mistake: In the scene where Ward is waiting for the boys outside the movie theater, several kids are seen walking out of the theater more than once. A brunette girl in a plaid dress is seen walking out at least six times. (00:02:00)

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 c-stand, a piece of filming equipment visible at the right side of the screen. (00:08:25)
New Doctor - S1-E32
Visible crew/equipment: While waiting for the new young doctor to arrive, June gives Beaver the glass of orange juice and heads downstairs. When June walks back into the kitchen just as Wally and Eddie enter the back door, there are multiple curved chalk marks visible on the floor. (00:14:25)

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)
Continuity mistake: While Wally, Beaver, and Eddie are talking about military school, Beaver is sitting inside a car tire swing, and depending on the shot, the tire's whitewall stripe either faces away from Beaver's front or his back. (00:17:25)
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)