Hey Arnold - 1996 April Fool's Day 5-14 was released on:
USA: 1 April 2002
April's Fools - 2010 was released on: USA: 1 April 2010
Web Soup - 2009 April Fools was released on: USA: 1 April 2011
Jake and Amir - 2007 April Fools was released on: USA: 1 April 2010
Who Knew - 2010 April Fools 3-66 was released on: USA: 1 April 2011
Jake and Amir - 2007 April Fools 1-21 was released on: USA: 1 April 2008
The Rules of Runford - 2011 April Fools 2-8 was released on: USA: 16 April 2012
Mama's Family - 1983 April Fools 5-19 was released on: USA: 1 April 1989
The Arnold Waltz - 1990 was released on: USA: 27 April 1990
Atop the Fourth Wall - 2008 April Fools Triple Feature was released on: USA:1 April 2011
Fred - 2008 Fred on April Fools Day 3-3 was released on: USA: 1 April 2009
Gary and Jim Present - 2013 April Fools 1-7 was released on: USA: 1 April 2013
Press Start Adventures - 2006 April Fools' Day Special was released on: USA: 1 April 2011