Hey Arnold!
The daily life of Arnold--a fourth-grader with a wild imagination, street smarts and a head shaped like a football.

Season 3 · Episode 1 ·
Helga Blabs It All
While feeling the effects of laughing gas, Helga leaves a confessional message of love on Arnold's phone machine. She then has to get into the boarding house in order to erase the message.
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Episode 1 of season 3 of Hey Arnold!: “Helga Blabs It All”. Aired 1998-08-31. Watch it online free on ZapFlix.