Snow White and the Seven Bradys - S5-E3
Trivia: The teacher being honored, "Mrs. Whitfield", was played by Frances Whitfield who was the on-set "teacher/legal supervisor/referee" for the kids during the show's run.
Trivia: Barry Williams has a Band-Aid on his lip in this episode because he was in a car accident a few days before filming and needed stitches in his lip. (00:05:00)
The Hair-Brained Scheme - S5-E22
Trivia: "Jan: Call Eve" is written on the small chalkboard. Jan was played by Eve Plumb. (00:01:30)
The Hair-Brained Scheme - S5-E22
Trivia: Notice in this episode that Mike Brady is nowhere to be seen. That's because he quit the show due to artistic differences with the producer. His absence is explained as being away on a business trip. It also wound up being the unexpected series finale.
Trivia: Matt is played by Todd Lookinland, brother of Mike Lookinland (who plays Bobby). This explains why he has a very strong resemblance to Bobby.
Trivia: Although a toilet is never seen in the entire show, this episode came fairly close as in one scene we hear a toilet flushing during the argument between Peter and Bobby.
The Hair-Brained Scheme - S5-E22
Trivia: When Bobby considers giving up trying to sell the hair tonic, Carol starts listing names of famous people who didn't quit. The last name she mentions is Carl Mahakian. Bobby says he never heard of him, and Carol says "Because he quit." Carl Mahakian was the show's post-production coordinator. (00:09:50)
Trivia: Frank Delfino - who plays one of the Kaplutians in Bobby's dream - utters the line "One small step for spacemen, one giant step for Kaplutians." The line was an ad-lib. (00:14:05)
Trivia: "Billy Garst" is frequently mentioned as being the most popular boy in Jan's class. Bill E. Garst was one of the editors on the show.
The Hair-Brained Scheme - S5-E22
Trivia: The storyline of Greg telling the two girls at the salon that Mrs. Brady is wearing a wig and is completely bald underneath is mentioned nearly 10 years later by Mr. Furley in a "Three's Company" episode. Furley though refers to the actress' name (Florence Henderson) by saying "Mrs. Henderson wears a wig... she's as bald as an eagle".
The Hair-Brained Scheme - S5-E22
Trivia: This was the only episode where the word "sex" was used in the show. It was said by Oliver.
Answer: Much trivia has been written about "The Brady Bunch, " including the various interrelationships and dynamics among the members of the cast. For example, much has been written about why Robert Reed's Mike Brady did not appear in a couple of episodes, including the series finale, due to rancorous creative and artistic differences with series creator, Sherwood Schwartz. However, in contrast, I have never run across any reasons given why a particular child did not appear in specific episodes - only that the episodes were missed. This suggests the causes were likely unexceptional, such as illness, injuries, vacations, or real-life family obligations.
Michael Albert
Although those options ARE possible reasons, it just seems a bit ironic that this happened all in Season 2 ONLY and within a short amount of nearly consecutive episodes. Never happened during the other 5 years of the show at all.