Hey Arnold! - Season 3 Episode 33 : Biosquare
The daily life of Arnold--a fourth-grader with a wild imagination, street smarts and a head shaped like a football.
First Air Date : Oct 07, 1996
Last Air Date : Jun 08, 2004
Runtime : 12 min.
Genre : Family, Animation, Comedy, Kids
Stars : Spencer Klein, Francesca Marie Smith, Jamil Walker Smith, Olivia Hack, Anndi McAfee, Justin Shenkarow, Blake McIver Ewing, Dan Castellaneta
Quality : 
- Eps. 1 : Helga Blabs It All1998-08-31
- Eps. 2 : Harold the Butcher1998-08-31
- Eps. 3 : Dangerous Lumber1998-09-02
- Eps. 4 : Mr. Hyunh Goes Country1998-09-02
- Eps. 5 : Casa Paradiso1998-09-07
- Eps. 6 : Gerald's Tonsils1998-09-07
- Eps. 7 : Arnold's Room1998-09-09
- Eps. 8 : Helga vs. Big Patty1998-09-09
- Eps. 9 : Stinky Goes Hollywood1998-09-16
- Eps. 10 : Olga Gets Engaged1998-09-16
- Eps. 11 : Curly Snaps1998-09-23
- Eps. 12 : Preteen Scream1998-09-23
- Eps. 13 : Grandpa's Birthday1998-09-30
- Eps. 14 : Road Trip1998-09-30
- Eps. 15 : Sid's Revenge1998-10-07
- Eps. 16 : Roller Coaster1998-10-07
- Eps. 17 : The Aptitude Test1998-10-14
- Eps. 18 : Oskar Gets a Job1998-10-14
- Eps. 19 : Arnold Betrays Iggy1998-10-19
- Eps. 20 : Helga and the Nanny1998-10-19
- Eps. 21 : Career Day1998-10-21
- Eps. 22 : Hey Harold!1998-10-21
- Eps. 23 : Best Man1998-11-02
- Eps. 24 : Cool Party1998-11-02
- Eps. 25 : Arnold & Lila1998-11-04
- Eps. 26 : Grand Prix1998-11-04
- Eps. 27 : Arnold's Thanksgiving1998-11-18
- Eps. 28 : Helga's Show1998-11-25
- Eps. 29 : The Flood1998-11-25
- Eps. 30 : Phoebe Takes the Fall1998-12-07
- Eps. 31 : The Pig War1998-12-07
- Eps. 32 : Part Time Friends1998-12-07
- Eps. 33 : Biosquare1998-12-07
- Eps. 34 : Crabby Author1998-12-28
- Eps. 35 : Rich Kid1999-01-04
- Eps. 36 : Girl Trouble1999-01-04
- Eps. 37 : School Dance1999-01-04
- Eps. 38 : School Play1999-03-08
