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)
Leave It To Beaver (1957)
1 mistake in The Boat Builders
Starring: Barbara Billingsley, Hugh Beaumont, Jerry Mathers, Tony Dow
June Cleaver: Dear, do you think all parents have this much trouble?
Ward Cleaver: No, just parents with children.
Trivia: Phyllis Coates, who plays the new neighbor Mrs. Donaldson, played Lois Lane in the first season of the Superman TV series in the 1950s.