It originally aired on Fox in the United States on June 19, However, he performs so poorly that he is declared technically intellectually disabled. Attempting to take advantage of the situation, he accidentally hospitalizes Lois while attempting to steal from a restaurant and loses custody of Meg , Chris , and Stewie. The episode's title is a double entendre , being both portmanteau between "Peter" and "Retarded" and also a reference to the Shakespeare -coined phrase " hoist with his own petard ".
This title practice would later be used on a few more episodes, namely " Peterotica " and " Petergeist ". Series producers tried to get Lennie Weinrib , the actor who had voiced him in the original cartoon segments, to make a guest appearance in the episode.
However, Weinrib declined reprising the role as he could not accurately recall the character. Critics and news sources responded with high praise and many regard this episode as Family Guy ' s best. Various scenes in the episode were removed by broadcast censors, including one musical number "Peter is Slow".
The Griffins invite their neighbors over for game night. While playing Trivial Pursuit , Lois uses questions from the preschool edition for Peter in order to let him win.
When Peter wins, he brags to everyone, believing himself to be smarter than everyone else. The results of the test show that Peter is not a genius; in fact, the results show that, technically speaking, Peter is " mentally retarded ".
