The origin of Alice's cake recipe she writes on the blackboard - which accidentally gets erased - seems to change! When she was trying to figure the ingredients out with the girls she said it was "the best cake I ever created". But when Peter erased it she commented about it being a "recipe that's been handed down from generation to generation...ending with this one!"
How could Jan say that she never won anything when we learn that Bobby was the only one without an award in the season 2 episode ,"The Winner?"
Notice the scene where Jan is sitting next to her mother, and she raises her fists and says, "I'm tired of being in Marcia's shadow all the time!" Jan's red dress is so short that when she lifts her fists, you can see her underwear.
All three of the girls had a triad line: Jan, with her renowned, "Marcia, Marcia, Marcia!"; Marcia discovered that her missing awards were "Gone, gone, gone!"; and in the Coda, Cindy imitates Jan's lament with "Jan, Jan, Jan!"
Eve Plumb (Jan) flubbed her lines during the "Marcia-Marica-Marcia" speech ("...how 'm' GREAT Marcia is...") and she does it again when she tells her parents that the second-highest score for the essay contest belonged to "Noras Coombes" (it's supposed to be Nora). Both errors were left in the show!
In the beginning of the episode, Jan, Peter Bobby and Greg are in the room when Alice tells them to boost up Marcia's confidence. When Marcia is washing up, Bobby and Cindy come to cheer Marcia up. But, shouldn't it be Bobby and Jan because Jan heard Alice's advice? How did Cindy know if she wasn't even there?
The episode's title The Personality Kid is a reference to the 1965 movie The Cincinnati Kid starring Steve McQueen.
In the scene where Peter is talking on the phone in front of Mike and Carol, look at his sleeve when he hangs up the phone. His shirt changes, and he appears to be wearing a dress. Either that or a very "puffy" shirt.
This episode is parodied in A Very Brady Sequel 1996.
Kathy Lawrence was in "The Personality Kid" in which she and Marcia were friends. In this episode, it's mentioned that Kathy beats Marcia in cheerleading but it's not revealed whether she won honestly or not or if they still stay as friends.
Peter throws left-handed.
This is the first of two Brady Bunch episodes that refer to Benedict Arnold. In Everyone Can't Be George Washington, which aired 14 months later, Peter played the role of Benedict Arnold in a school play.
It's unclear how the Bradys were suppose to lug a heavy dunking booth like that down to the school, even without the water!
Marcia, Jan and Cindy are seen leaving for their ballet lesson. In this one, Cindy has a bright red tutu, in the "Don Drysdale" episode, they had pastel tutus, and in "Try,Try, Again", it was black leotards.
Near the end of the episode, Chief Eagle Cloud gives each Brady an Indian name:
Mike: Big Eagle of Large Nest
Carol: Yellow Flower with Many Petals
Greg: Stalking Wolf
Peter: Middle Buffalo and as a second choice Sleeping Lizard
Cindy: Wandering Blossom
Bobby: Little Bear Who Loses Way
Jan: Dove of the Morning Light
Marcia: Willow Dancing in Wind
Alice: Squaw in Waiting
You can totally tell that the first two shots featuring Mike, Marcia, and Peter and Carol, Jan, and Greg looking for Bobby and Cindy, and the shots used in the end, are just the same shots mirrored.
If the boys needed to rig a special battery hookup to the old phone they were using, why wouldn't the one Cindy answered have needed a new battery too? Each phone would be as old as the other!
I don't see how Mr. Brown could have driven off with the car and the trailer. because if you look at the scene where Mike turns around from looking out the jail cell window, you can see the car key hanging just outside of his pocket. Unless, there were two keys, and one was still in the ignition, then he should have gotten BOTH keys.
The Brady's are able to fill up the gas tank of the station wagon and buy soft drinks for six dollars and fifty cents.
Alice comments to Zacharia "..Is that the old saloon where you used to 'whoop it up'...?" How old was the prospector, anyhow? This was 1971 and the town was from the 1800s!