Robert Reed does not appear in two episodes ("Goodbye, Alice, Hello" in season 4, and the series finale).Each of the other five Brady kids is absent from one of five different episodes during season two.Michael Paul Brady, an architect and widower with three sons (Greg, Peter and Bobby) marries Carol Ann Martin, a mother with three daughters (Marcia, Jan and Cindy).
The series ran for five seasons, with all 117 episodes originally airing on Fridays. Ratings began to dip in season five, and in order to boost viewership of its much-needed younger audience, Schwartz introduced a new character: the Bradys' cousin Oliver (Robbie Rist) late in the season.
Schwartz's plan failed, and the series was canceled before the start of the 1974 fall season.
Alice and Carol are worried, and Alice fears it might be Mike or one of the boys.
When it seems that Jan is allergic to Tiger, the family fear they might have to lose their pet dog, until they discover that she's only allergic to his new flea powder.
Libby explains that the "Harried and Hopeless" letter originated from someone else, 2,000 miles away.
Mike admits he also wrote a letter to "Dear Libby", but never sent it. Cindy is starring in the school play The Frog Prince as the fairy princess.While on their honeymoon, Mike and Carol realize that they were too hard on their children, and they decide to bring them along on the honeymoon.They also bring along housekeeper Alice, Tiger, and Fluffy.Thinking that the family no longer needs her, she invents a story about a "sick aunt in Seattle".When Marcia and Jan overhear Alice on the phone to a friend and discover the ruse, they tell their parents.Of the nine main cast members, only Florence Henderson, Ann B.