Continuity mistake: When Beaver goes to Penny's front door, the door changes in appearance from one shot to the next. (00:23:05)
Continuity mistake: When Margie Manners is shown mopping the Cleaver's kitchen floor she is using a sponge mop. When Wally comes in, the scene then shows Margie pushing a string mop against Wally's shoes.
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)
Continuity mistake: When Beaver makes a face for The School Picture, he sticks his tongue out. But when Mrs. Rayburn and Miss Landers are looking at the picture sometime later, Beaver isn't sticking his tongue out. (00:13:00)
Continuity mistake: When June is talking to Wally, she's wearing a wristwatch and her wedding ring on her left hand. But in a close-up shot of her hands while she's making a sandwich, her left hand is bare with no watch or ring. Back to the wide shot, and the watch and ring are on her hand again. (00:05:25)
Other mistake: Eddie says his name is Edward Clark Haskell, Jr. In the Voodoo Magic episode, Eddie's father is George.
Other mistake: In a hallway scene with Wally, Miss Canfield, and Mrs. Rayburn, the principal comments that "he's in the 8th grade." If that was correct, that would mean that Wally would be in high school the following year. And with 5 years to follow in the show's tenure, that would mean that Wally wouldn't be in school by the end of the show. Unless, of course, he stayed back 2 years. (00:10:10)
Audio problem: In the early classroom scene, after Judy reads the grammar exercise, Miss Canfield calls on Whitey Whitney, who has raised his hand. When she does, she seems to say, "Harold." (00:01:20)
Continuity mistake: When June enters the boys' bedroom at nearly 1:00 am, she turns on their light. In the closeup, she flips the light switch, which is already in the up position, and the light turns on, but in the next shot, the light switch is in the down position. Then, when June exits their bedroom, in the wide shot, the light switch is in the down position, but in the closeup, the switch is in the up position so she can flip it down (off). (00:06:35)
Visible crew/equipment: After Bengie pours the green paint all over himself, when his mother arrives, there's a chalk T-mark on the floor by the door. (00:19:45)
Visible crew/equipment: In the middle of the night, when June walks in on the boys reading Tom Sawyer by flashlight under the blanket, the shadow of the moving boom mic is visible on the wall, at the right side of the screen. (00:06:40)
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: After Beaver and Larry decide to head over to the supermarket for free food samples, when it cuts to Wally's bedroom, there's a T-mark on the floor beside his bed. (00:09:55)
Visible crew/equipment: When Wally enters the kitchen and tells June that Beaver is upstairs changing his backwards underwear, the T-mark is visible on the floor under the sink. (00:01:05)
Continuity mistake: While Beaver and Larry are watching the "corkscrew" digging a hole, when their books and lunchboxes are run over by a truck, the damage changes in the following shots. (00:04:40)
Visible crew/equipment: While Ward and Beaver are in the garage, Ward straightens out Beaver's Olympics three-legged race misconception. Then, just as June enters the garage, the moving boom mic casts a shadow at the top left corner of the screen. (00:07:40)
Visible crew/equipment: When Tooey and Eddie come over to see Wally's "really sharp" new plaid suit, the boys go upstairs to see Wally's new crazy socks. Then, just as Ward tells June the suit looks like a horse blanket, the shadow of the moving boom mic is visible at the top right corner of the screen. (00:15:20)
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)
Captain Jack - S1-E3
Continuity mistake: Ward jokes about the boys having two baths in three days, being some kind of record. It then cuts to the boys sitting on the floor in the bathroom, and we can see the hamper at the right with nothing atop it, but when Wally stands up to put CJ back in the "aquarium" the tank lid is lying on the hamper. (00:11:35)
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.
