Home / Series / Hey Arnold! / Aired Order / Season 4 / Episode 23
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Home / Series / Hey Arnold! / Absolute Order / Season 1 / Episode 423

Grandpa's Sister

Grandpa's sister unexpectedly shows up at the Boarding House, but Arnold doesn't know why she and Grandpa are always fighting with each other.

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  • Originally Aired October 16, 1999
  • Runtime 11 minutes
  • Content Rating United States of America TV-Y
  • Production Code 076
  • Network Nickelodeon
  • Created June 30, 2017 by
    Administrator admin
  • Modified January 21, 2023 by
    qux
Name Type Role
Craig Bartlett Writer
Christine Kolosov Director