Hey Arnold! (1996)

Creator: Craig Bartlett

Air Dates: October 7th, 1996 - June 8th, 2004 (8 years)
Seasons: 5
Episodes: 100 (185 segments)
Episode Time: 23 minutes (two 11 minute segments) 

Hey Arnold! is a cartoon that ran on Nickelodeon, and it starred a 9-year-old boy named Arnold who lives with his grandparents in their boarding house. He's known for his football-shaped head and big anime-like blond hair.