My daughter Nora joins me to talk about what was probably her (and my) favorite Nickelodeon animated series when she was a kid -- "Hey, Arnold!" We talk about the show's philosophy of diversity as strength and review some memorable episodes, including "The Stoop Kid," "The Pigeon Man," "Ghost Bride" and "Helga on the Couch," detailing the life of' Arnold's truest love/fiercest enemy, Helga Pataki.