I loved this show as a kid, but rewatching episodes as an adult, I am struck by how sophisticated the writing is, how nuanced the understanding of a child's psychology and concerns. Arnold is a great protagonist and the characters around him often defy the usual stereotypes common in children's media-- even the bullies are given vulnerabilities. While a lot of the shows I liked as a child I can hardly bother going back to, HEY ARNOLD! proves even better than I remembered.