Throughout the entire series, they never showed the entrance door to the laundry room, a bathroom on the first floor, the parents' bathroom in their bedroom, or the door to the kids' bathroom from the hall. Their first floor must have at least a half bathroom, meaning a bathroom without any bathing facilities.
The middle aged woman under the hair dryer at the beauty parlor is Mildred Schwartz, Sherwood Schwartz' wife.
This is the third time Hope Sherwood would change her role on the show. First she was Jenny Wilton as Marcia's friend in one episode, then Rachel as Greg's date and girlfriend in two episodes, and now Gretchen as Greg's graduating classmate in this episode.
Throughout the entire episode, Greg states that graduation is "tomorrow." However, when he is in the beauty parlor, there are two girls from his class who just got their hair done. They clearly state that graduation is "tonight."
Explaination: Maybe Greg couldn't get an appointment until the next day.
Greg: Tomorrow's graduation, and I have orange hair!
Carol: Did Thomas Edison quit?
Carol: How about the Wright Brothers. Did they quit?
Carol: And how about Carl Mahakian?
Bobby: Carl Mahakian? Never heard of him.
Carol: That's right. 'Cause he quit!
Oliver: You know something, Cindy?
Oliver: I think your mom has a problem discussing sex.
Marcia should have got the attic after Greg. In the eposide "A room at the top" Mike and Carol told Marcia that she would the the attic after Greg.
Cousin Oliver was only in the last 6 eposides of the Brady Bunch.
When Robert Reed(Mike Brady) read the script for this episode, he hated it and refused to appear in it. His lines were given to Carol. To explain him not appearing, at the end Carol says that Mike is out of town on business. This is one of 2 episodes that he did not appear in, the other was "Goodbye Alice, Hello".
Florence Henderson, Barry Williams and Ann B. Davis are the only three cast members to appear in all 117 episodes of the series. In second place are Maureen McCormick, Eve Plumb, Christopher Knight, Mike Lookinland and Susan Olsen who appeared in 116/117 episodes, and in third place is Robert Reed who appeared in 115/117 episodes.
This is Cousin Oliver's final appearance with the Brady's, as he is not seen in any of the reunions nor is he mentioned in any of them, which I thought was strange since he did live with the Brady's. You would think he and his parents would be at Marcia and Jan's double wedding, especially considering that Mike & Carol took Oliver in when Jack & Pauline went out of the country.
In the original subplot, Marcia and Peter were supposed to argue over who gets the attic when Greg goes away to college. Robert Reed's refusal to appear in this episode caused this to change. In the tag, it was detemined that Marcia and Peter would bet on which college Greg would attended.
Studio security wanted to remove Mr. Reed from the set but the producers wouldn't allow it. They didn't want to upset the kids.
In the first scene, the message on the chalkboard in the kitchen was: "Jan call Eve"
This episode brings a sense of closure to the series due to the fact that Greg graduates from high school. Also, Peter and Marcia have a playful argument over who would get the attic room after Greg moves out.
This is the only episode of The Brady Bunch where the word "sex" is stated by Oliver, of all people.
This episode was featured on the VH1 Series Pop Up Brady. According to Pop Up Brady, when Robert Reed refused to appear in the episode, his lines were distributed between Florence Henderson and Ann B. Davis.
This is the final episode, due to cancelation.
Barry Williams, in his book "Growing Up Brady," explains the reason for Reed's absence was over his total objection to the script (Reed found the plot so implausable he refused to appear). However, Reed did go to the studio to watch the filiming of the episode, which turned out to be the final one in the series.
Carol mentions Carl Mahakian as a person who gave up when she tries to encourage Bobby. Mahakian was a post-production coordinator for the series.
Robert Reed does not appear in this episode, even though he is in the opening credits, allegedly because he got in an argument with series creator Sherwood Schwartz and and was written out. It has also been said that Reed did not like the script for the final episode and didn't want to be part of it. In the episode itself, the character of Mike is written as being out of town.
Peter: He looks just like Lucille Ball When Peter first saw Greg's red dyed hair, he said this to his mom. Lucille Ball was the first lady of television starring in I Love Lucy which she and her husband Desi Arnaz play Lucy and Ricky Ricardo & Fred and Ethel Mertz. The two couples had misadventures on the show which ran from 1951-1957 The 1973-74 television season was the last for both The Brady Bunch and Here's Lucy, Lucille Ball's last successful series and her last series for CBS.