The father from The Gang Gets Extreme: Home Makeover Edition (2008) introduces himself as Mr. Juarez, when in that episode it was revealed that they aren't actually called the Juarez family.
In the third season (Dennis and Dee's Mom Is Dead (2007)), Barbara's will says that she wanted to be buried with all of her jewelry, but when the coffin is open, only a golden necklace is inside of it.