Grandma Gertie/Appearances

• Arnold
• 2b. Field Trip
• 3a. Arnold's Hat
• 4b. The Old Building
• 5b. The Baseball
• 6. Heat / Snow
• 7. Operation Ruthless / The Vacant Lot
• 8a. The List
• 9a. Mugged
• 10. Door #16 / Arnold as Cupid (no lines in each episode)
• 12a. Das Subway
• 13b. Gerald Comes Over
• 14a. Spelling Bee
• 16a. Abner Come Home
• 17b. World Records (no lines)
• 18b. 24 Hours To Live
• 19b. Runaway Float (no lines)
• 20. Arnold's Christmas
• 23b. Four-Eyed Jack
• 26b. Partners
• 29a. Save the Tree
• 31b. Big Caesar
• 35. Freeze Frame / Phoebe Cheats (no lines)
• 40. Arnold's Halloween
• 41b. Oskar Gets a Job
• 45a. Helga Blabs It All
• 50a. Casa Paradiso
• 52b. Cool Party (no lines)
• 54a. Grandpa's Birthday
• 56. Arnold's Thanksgiving
• 57a. Girl Trouble
• 60. Parents Day
• 61a. Eugene's Birthday (no lines)
• 66b. Friday the 13th
• 77a. Helga's Parrot (episode) (no lines)
• 71. "Veterans Day (no lines)
• 72a. Back to School
• 74. Helga Sleepwalks / Fighting Families
• 76a. Grandpa's Sister
• 79. Dino Checks Out (cameo)
• 80. Summer Love
• 85b. Rhonda Goes Broke
• 86a. Helga's Locket
• 91a. Harold vs. Patty (no lines)
• 93b. Family Man
• 94b. Grandpa's Packard
• 96. Married (no lines)
• Hey Arnold! The Movie
• 98. April Fool's Day
• 99-100. The Journal
• Hey Arnold! The Jungle Movie