Back to School (S04E15)
S04E15
When Grandpa reveals to Arnold that he never earned his grade school diploma, Arnold persuades him to return to school at P.S. 118.
Show
Hey Arnold!
Episode
S04E15
Air Date
Sep 11, 1999
Season 4 Episodes
S04E01
Full Moon
S04E02
Student Teacher
S04E03
Big Gino
S04E04
Jamie O in Love
S04E05
Eugene's Birthday
S04E06
Stinky's Pumpkin
S04E07
The Beeper Queen
S04E08
Oskar Can't Read?
S04E09
Dinner for Four
S04E10
Phoebe Skips
S04E11
Helga's Parrot
S04E12
Chocolate Turtles
S04E13
Love and Cheese
S04E14
Weighing Harold
S04E15
Back to School
S04E16
Egg Story
S04E17
It Girl
S04E18
Deconstructing Arnold
S04E19
Grudge Match
S04E29
Veterans Day
S04E30
Helga on the Couch
S04E31
Dino Checks Out