Hey Arnold! (1996)
S4E2 Student Teacher
When spring break arrives, Helga's sister Olga returns home and takes on the role of a classroom aide in Helga's class, much to Helga's annoyance.
When spring break arrives, Helga's sister Olga returns home and takes on the role of a classroom aide in Helga's class, much to Helga's annoyance.