This episode was one of the very rare occasions where we see Wilma and Betty actually fight with each other.
Dino is nowhere in sight, but the Flintstones own a cat!
One sequence got past the censors. Fred is standing in the doorway of the bathroom, and next to him is what is clearly not the sink, but rather the edge of the toilet.
In this episode, the Flintstones have only one bedroom (the number seems to vary).
(after Fred and Barney exit the Quickie Car Wash)
Fred: So, what do you think, Barney? Beats washing the car yourself, huh?
Barney: Sure gives you a pickup.
(Barney foams out the remaining suds from his mouth)
This episode was recorded on 5-15-61.