Numbuh 4 is a massive Death Grips fan.
This was the last series of the original Cartoon Cartoons, which aired from February 1995 to January 2008. However, the Ed, Edd n Eddy movie finale, Ed, Edd n Eddy's Big Picture Show (2009), the last official series of the original Cartoon Cartoons, was released on November 8, 2009.
This is the series finale of "Codename: Kids Next Door".