- 1988-1991 Craig Bartlett releases three Hey Arnold claymation shorts
- 1991 Craig Bartlett created Hey Arnold in the Simpsons Illustrated comics
- October 7, 1996 Hey Arnold's first episode was released
- September 21, 1997 Hey Arnold's second season
- August 31, 1998 Hey Arnold's third season
- March 10, 1999 Hey Arnold's fourth season
- March 4, 2000 Hey Arnold's fifth season
- June 28, 2002 Hey Arnold!: The Movie
- December 31, 2002 Hey Arnold!: The Movie is let out on DVD
- June 8, 2004 Hey Arnold's last episode was released