|Episode of Hey Arnold!|
|Season 4, Episode 74a|
|Air date: October 23, 1999|
|IMDb • TV.com|
Don Del Grande's
Helga Sleepwalks is an episode in the Hey Arnold! TV Series.
- It's revealed in the episode that, at some point, Helga told Phoebe about her secret love for Arnold.
- In the first scene we see that Arnold writes with his left hand.
- In the bus scene, you can see it appears to be Caesar.