Butch Hartman, the creator of the show, later apologized for the episode 'It's a Wishful Life", as many viewers found it to be quite cruel and mean spirited.
In the episode "Timmy's 2D House of Horror", Dad Turner's wallet has embroidered the logo of a possible rock band "REM Speed Dragon". This name is a mix between two famous rock bands: R.E.M. and REO Speedwagon.
Although this episode premiered in 2005, it was produced in 2004 according to the credits.