Trivia: In "Four dreams" the alternative Allison who doesn't have children looks at some kids in a restaurant and gets a dreamy look on her face. The mother of the children she is admiring addresses her daughter as "Sofia". The "real" Allison's daughter Ariel is played by actress Sofia Vassilieva.
Trivia: In the episode "Mothers Little Helper" When you see the front of the refrigerator, the word HARLO is visible on it, Patricia Arquette's daughter is named HARLOW, fitting for a storyline about mothers and daughters.
