Hey Arnold!
S04E02 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.
Season 4 Episodes
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7
8
9
10
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14
15
16
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19
29
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31
Full Moon
Student Teacher
Big Gino
Jamie O in Love
Eugene's Birthday
Stinky's Pumpkin
The Beeper Queen
Oskar Can't Read?
Dinner for Four
Phoebe Skips
Helga's Parrot
Chocolate Turtles
Love and Cheese
Weighing Harold
Back to School
Egg Story
It Girl
Deconstructing Arnold
Grudge Match
Veterans Day
Helga on the Couch
Dino Checks Out