Watch Hey Arnold! Season 4 Episode 12 Online — Grandpa's Sister / Synchronized Swimming | Bobina

Hey Arnold! — Season 4, episode 12 watch online

  • Animated Series: Hey Arnold!
  • Seasons: Season 4
  • Episode 12: «Grandpa's Sister / Synchronized Swimming»
  • Air date: October 16, 1999
  • Running time: 30 min

Hey Arnold!, season 4 episode 12 «Grandpa's Sister / Synchronized Swimming»: air date October 16, 1999. Episode overview, season trailer and the cast of Hey Arnold!.

Grandpa's sister vists; the gang takes up synchronized swimming

Episodes — Season 4

  1. 1 Episode 1 «Full Moon / Student Teacher» March 10, 1999
  2. 2 Episode 2 «Big Gino / Jamie O. In Love» March 15, 1999
  3. 3 Episode 3 «Eugene's Birthday / Stinky's Pumpkin» March 17, 1999
  4. 4 Episode 4 «The Beeper Queen / Oskar Can't Read?» March 29, 1999
  5. 5 Episode 5 «Dinner for Four / Phoebe Skips» March 31, 1999
  6. 6 Episode 6 «Helga's Parrot / Chocolate Turtles» April 5, 1999
  7. 7 Episode 7 «Love and Cheese / Weighing Harold» April 7, 1999
  8. 8 Episode 8 «Back to School / Egg Story» September 11, 1999
  9. 9 Episode 9 «It Girl / Deconstructing Arnold» September 18, 1999
  10. 10 Episode 10 «Grudge Match / Polishing Rhonda» September 25, 1999
  11. 11 Episode 11 «Weird Cousin / Baby Oskar» October 9, 1999
  12. 12 Episode 12 «Grandpa's Sister / Synchronized Swimming» October 16, 1999
  13. 13 Episode 13 «Helga Sleepwalks / Fighting Families» October 23, 1999
  14. 14 Episode 14 «Headless Cabbie / Friday the 13th» October 30, 1999
  15. 15 Episode 15 «Veteran's Day» November 6, 1999
  16. 16 Episode 16 «Helga on the Couch» December 4, 1999
  17. 17 Episode 17 «Dino Checks Out» December 11, 1999