30 years since Hey Arnold first premiered on Nickelodeon!

#HeyArnold #Nickelodeon #30Years #Helga #Gerald #Phoebe #Harold #Stinky #Sid #Rhonda #Eugene #Lila #Phil #Gertrude #Oskar #Ernie #MrHyunh #MrSimmons #PrincipalWartz #StoopKid #Hillwood #PS118 #JollyOlly #NostalgiaTalk