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)
Leave It To Beaver (1957)
1 mistake in Party Invitation
Starring: Barbara Billingsley, Hugh Beaumont, Jerry Mathers, Tony Dow
Eddie Haskell: Look Sam, if you can make the other guy feel like a goon first, then you don't feel like so much of a goon.
Wally Cleaver: I don't get that.
Eddie Haskell: Of course you don't. That's because you never went to kindergarten with a home permanent.
Captain Jack - S1-E3
Trivia: The gentleman at the alligator farm is the same one who plays Uncle Billy later on.