Grounded for Life (2001)

Oops!...I Did It Again - S2-E22

Continuity mistake: This episode establishes that Lily was born at the Live Aid event, which took place in July 1985. In the show's final episode, "Hello, Goodbye", Brad and Lily are graduating in 2005 (see the "congratulations" banner in a hallway at their school). Being born in 1985 would mean that she is graduating at age 20. It is highly unlikely that she failed and repeated two of her school years. Brad, who is the same age, is graduating with her, and he is a dedicated student.

Claudia: You were ambushed by elves?
Sean: Yeah, yeah. Santa's elves. The fat bastard sicked them on me.
Claudia: But your dad is Santa.
Sean: Yeah, and he's a fat bastard.

Trivia: Megyn Price plays Claudia Finnerty, mother of Lily Finnerty (Lynsey Bartilson). In real life, Price is only 12 years older than Bartilson.

Jimmy Was Kung-Fu Fighting - S1-E12

Question: How can Sister Helen give Lily detention when she sees Lily's tongue ring? She is at the Finnerty's house. Piercings are often a violation of school dress codes, but Sister Helen has not seen the piercing while at school.