The stock football footage is the same footage used in S3E11, titled "Click". "Click" is the episode where Greg gets hurt playing football against Carol's wishes and ends up taking photos on the sidelines.
Carol Brady graduated from the same high school her children attend: Westdale High School.
The convertible Jerry Rogers drives while giving Marcia a ride home is a Triumph Spitfire.
Mike jokes about Tank Gates being like Tarzan. Denny Miller played that role in Tarzan, the Ape Man (1959).
In this episode, Greg is seen playing halfback on the football team. However, in "Click", Carol was against him playing football due the fact that he could be seriously injured.