Bio Square

Name: Bio Square
Genre: Comedy, Animation, Action & Adventure, Kids
Released: December 7, 1998
Cast: Adam Wylie, Olivia Hack, Dan Butler, Tress MacNeille, Maurice LaMarche

Hey Arnold!: Season 3: Episode 33

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Episode Details & Credits

Nickelodeon | Air Date: December 7, 1998

Starring: Adam Wylie, Olivia Hack, Dan Butler, Tress MacNeille, Maurice LaMarche, Kath Soucie, Toran Caudell, Justin Shenkarow, Alex D. Linz, Christopher Castile, James Belushi, Lou Rawls, Steve Viksten, Mary Scheer, Dom Irrera, Elizabeth Ashley, James Keane, Blake McIver Ewing, Francesca Smith, Sam Gifaldi, Nika Futterman, Ashley Buccille, David Wohl, Jamil Walker Smith, Jarrett Lennon, Baoan Coleman, Lauren Robinson, Fred Newman, Anndi McAfee, Spencer Klein, Joseph Ashton, Benjamin Diskin, Christopher P. Walberg, Jordan Warkol, Rick Corso, Phillip Van Dyke

Summary: As part of a science project, Arnold and Gerald prepare to spend 24 hours in a greenhouse—until Helga foils their plans.

Genre(s): Comedy, Animation, Action & Adventure, Kids

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Season 3 Episodes

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S3:E38. School Play
Air Date: March 8, 1999
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S3:E38. School Play
Air Date: March 8, 1999
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S3:E37. School Dance
Air Date: January 4, 1999

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Seasons & Episodes

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Series Overview
Season 5

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- Season 5 Overview
  Air Date: March 4, 2000
Season 4

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- Season 4 Overview
  Air Date: March 10, 1999
Season 3

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- Season 3 Overview
  Air Date: August 31, 1998
- tbd
  S3:E38. School Play
  Air Date: March 8, 1999
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  S3:E38. School Play
  Air Date: March 8, 1999
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  S3:E37. School Dance
  Air Date: January 4, 1999
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  S3:E36. Girl Trouble
  Air Date: January 4, 1999
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  S3:E35. Rich Kid
  Air Date: December 28, 1998
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  S3:E34. Crabby Author
  Air Date: December 28, 1998
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  S3:E33. Bio Square
  Air Date: December 7, 1998
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  S3:E31. The Pig War
  Air Date: December 7, 1998
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  S3:E30. Phoebe Takes the Fall
  Air Date: December 7, 1998
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  S3:E29. The Flood
  Air Date: November 23, 1998
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  S3:E28. Helga's Show
  Air Date: November 23, 1998
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  S3:E27. Arnold's Thanksgiving
  Air Date: November 18, 1998
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  S3:E27. Arnold's Thanksgiving
  Air Date: November 18, 1998
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  S3:E20. School Play
  Air Date: March 8, 1999
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  S3:E19. Girl Trouble / School Dance
  Air Date: January 4, 1999
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  S3:E18. Crabby Author / Rich Kid
  Air Date: December 28, 1998
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  S3:E17. Part-Time Friends / Bio Square
  Air Date: November 30, 1998
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  S3:E16. Phoebe Takes the Fall / The Pig War
  Air Date: December 7, 1998
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  S3:E15. Helga's Show / The Flood
  Air Date: November 23, 1998
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  S3:E14. Arnold's Thanksgiving
  Air Date: November 18, 1998
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  S3:E13. Arnold & Lila / Grand Prix
  Air Date: November 11, 1998
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  S3:E12. Best Man / Cool Party
  Air Date: November 2, 1998
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  S3:E11. Career Day / Hey Harold!
  Air Date: October 21, 1998
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  S3:E10. Arnold Betrays Iggy / Helga and the Nanny
  Air Date: October 19, 1998
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  S3:E9. The Aptitude Test / Oskar Gets a Job
  Air Date: October 14, 1998
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  S3:E8. Sid's Revenge / Roller Coaster
  Air Date: October 7, 1998
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  S3:E7. Grandpa's Birthday / Road Trip
  Air Date: September 28, 1998
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  S3:E6. Curly Snaps / Pre-Teen Scream
  Air Date: September 16, 1998
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  S3:E5. Stinky Goes Hollywood / Olga Gets Engaged
  Air Date: September 14, 1998
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  S3:E4. Arnold's Room / Helga vs. Big Patty
  Air Date: September 9, 1998
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  S3:E3. Casa Paradiso / Gerald's Tonsils
  Air Date: September 7, 1998
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  S3:E2. Dangerous Lumber / Mr. Hyunh Goes Country
  Air Date: September 2, 1998
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  S3:E1. Helga Blabs It All / Harold the Butcher
  Air Date: August 31, 1998
Season 2

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- Season 2 Overview
  Air Date: September 22, 1997
Season 1

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- Season 1 Overview
  Air Date: October 7, 1996