Hey Arnold! — Season 3, episode 12 watch online

Episodes — Season 3

1. 1 Episode 1 «Helga Blabs It All / Harold the Butcher» August 31, 1998
2. 2 Episode 2 «Dangerous Lumber / Mr. Hyunh Goes Country» September 2, 1998
3. 3 Episode 3 «Casa Paradiso / Gerald's Tonsils» September 7, 1998
4. 4 Episode 4 «Arnold's Room / Helga vs. Big Patty» September 9, 1998
5. 5 Episode 5 «Stinky Goes Hollywood / Olga Gets Engaged» September 16, 1998
6. 6 Episode 6 «Curly Snaps / Pre-Teen Scream» September 23, 1998
7. 7 Episode 7 «Grandpa's Birthday / Road Trip» September 30, 1998
8. 8 Episode 8 «Sid's Revenge / Roller Coaster» October 7, 1998
9. 9 Episode 9 «The Aptitude Test / Oskar Gets a Job» October 14, 1998
10. 10 Episode 10 «Arnold Betrays Iggy / Helga and the Nanny» October 19, 1998
11. 11 Episode 11 «Career Day / Hey Harold!» October 21, 1998
12. 12 Episode 12 «Best Man / Cool Party» November 2, 1998
13. 13 Episode 13 «Arnold & Lila / Grand Prix» November 4, 1998
14. 14 Episode 14 «Arnold's Thanksgiving» November 18, 1998
15. 15 Episode 15 «Helga's Show / The Flood» November 25, 1998
16. 16 Episode 16 «Phoebe Takes the Fall / The Pig War» December 7, 1998
17. 17 Episode 17 «Part-Time Friends / Bio Square» December 7, 1998
18. 18 Episode 18 «Crabby Author / Rich Kid» December 28, 1998
19. 19 Episode 19 «Girl Trouble / School Dance» January 4, 1999
20. 20 Episode 20 «School Play» March 8, 1999