Season
- Season 5 2001-03-04
- Season 4 1999-03-10
- Season 3 1998-08-31
- Season 2 1997-09-22
- Season 1 1996-10-07
- Season 0 1994-06-16
Episode
- Episode 1: Helga Blabs It All
- Episode 2: Harold the Butcher
- Episode 3: Dangerous Lumber
- Episode 4: Mr. Hyunh Goes Country
- Episode 5: Casa Paradiso
- Episode 6: Gerald's Tonsils
- Episode 7: Arnold's Room
- Episode 8: Helga vs. Big Patty
- Episode 9: Stinky Goes Hollywood
- Episode 10: Olga Gets Engaged
- Episode 11: Curly Snaps
- Episode 12: Preteen Scream
- Episode 13: Grandpa's Birthday
- Episode 14: Road Trip
- Episode 15: Sid's Revenge
- Episode 16: Roller Coaster
- Episode 17: The Aptitude Test
- Episode 18: Oskar Gets a Job
- Episode 19: Arnold Betrays Iggy
- Episode 20: Helga and the Nanny
- Episode 21: Career Day
- Episode 22: Hey Harold!
- Episode 23: Best Man
- Episode 24: Cool Party
- Episode 25: Arnold & Lila
- Episode 26: Grand Prix
- Episode 27: Arnold's Thanksgiving
- Episode 28: Helga's Show
- Episode 29: The Flood
- Episode 30: Phoebe Takes the Fall
- Episode 31: The Pig War
- Episode 32: Part Time Friends
- Episode 33: Biosquare
- Episode 34: Crabby Author
- Episode 35: Rich Kid
- Episode 36: Girl Trouble
- Episode 37: School Dance
- Episode 38: School Play
Hey Arnold! Season 3 Biosquare
The daily life of Arnold--a fourth-grader with a wild imagination, street smarts and a head shaped like a football.
