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![Save the Tree / New Teacher episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/c0c3257a2282ec1209a483185b41e01b3b13b768.png "Watch "Save the Tree / New Teacher" episode online")
![Helga's Love Potion / Gerald's Secret episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/5925dce07bb52cab9c50650e054100bac0170a92.png "Watch "Helga's Love Potion / Gerald's Secret" episode online")
![The Big Scoop / Harold's Kitty episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/2ff0e24994105c723cb450d24aca458d1dde8250.png "Watch "The Big Scoop / Harold's Kitty" episode online")
![Longest Monday / Eugene's Pet episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/95f27ff6f6eefbf491654127035a3f6c46dc2070.png "Watch "Longest Monday / Eugene's Pet" episode online")
![Monkey Business / Big Caesar episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/ef8807eb850f171e18e513388d0ec571ecf5115a.png "Watch "Monkey Business / Big Caesar" episode online")
![Ransom / Ms. Perfect episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/1202f665959152e8654a961e3c5be66be75d2fcf.png "Watch "Ransom / Ms. Perfect" episode online")
Ransom / Ms. Perfect
6
204
![Arnold Saves Sid / Hookey episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/c5aa7844cc8ec670689252f7a62a76f880dedbb4.png "Watch "Arnold Saves Sid / Hookey" episode online")
![Freeze Frame / Phoebe Cheats episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/c5eeb088cc095b6a0df8742c57682e2a071e42a6.png "Watch "Freeze Frame / Phoebe Cheats" episode online")
![Mudbowl / Gerald Moves Out episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/e74d44da7c9bd4ce5aeeeb60c24dc66120c57526.png "Watch "Mudbowl / Gerald Moves Out" episode online")
![The High Life / Best Friends episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/44aedc26d34cd438a2a60b187840dce8934aa4be.png "Watch "The High Life / Best Friends" episode online")
The High Life / Best Friends
10
124
![Arnold's Halloween episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/337265aaf7051bdf9cb15e984f3b518a71d89a2c.png "Watch "Arnold's Halloween" episode online")
Arnold's Halloween
11
161
![Steely Phil / Quantity Time episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/c13a809dd4c1750943d4ac48b85529125ebb3459.png "Watch "Steely Phil / Quantity Time" episode online")
Steely Phil / Quantity Time
12
106
![Eating Contest / Rhonda's Glasses episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/0dfa2112bb64014c10308018652aadeface71e51.png "Watch "Eating Contest / Rhonda's Glasses" episode online")
![Helga's Boyfriend / Crush on Teacher episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/b0ed7eee998347f6577ea4dc5d8fb3e4fad83c68.png "Watch "Helga's Boyfriend / Crush on Teacher" episode online")
![Hall Monitor / Harold's Bar Mitzvah episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/f76ed3841b89c29fd1d54149094be13db106eb19.png "Watch "Hall Monitor / Harold's Bar Mitzvah" episode online")
![Coach Wittenberg / Four-Eyed Jack episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/67a097254a536a7d836e593f651905d148e90915.png "Watch "Coach Wittenberg / Four-Eyed Jack" episode online")
![Eugene Goes Bad / What's Opera, Arnold? episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/35079f12b54645f33d11e5dd36d6f643af483460.png "Watch "Eugene Goes Bad / What's Opera, Arnold?" episode online")
![Tour de Pond / Teachers' Strike episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/5cddf780c329d5653549a580f46cb99f27ee9333.png "Watch "Tour de Pond / Teachers' Strike" episode online")
![Runaway Float/Partners episode thumbnail](https://english-fun.org/images/thumbs/tvseries/animated/hey_arnold/f7800253d83a6472b827e9e288968d98861af679.png "Watch "Runaway Float/Partners" episode online")
Runaway Float/Partners
20
125
