The episode "Hell Is Other Robots" centers around Bender's becoming addicted to high-voltage electricity, then discovering the religion of Robotology to help him break the habit. Sermons are conducted at the Temple of Robotology by the Reverend Preacherbot, a character whose mannerisms draw heavily on black church preacher stereotypes. "Robotology" is a play on the name Scientology, and series creator Matt Groening has said that he received a call from the Church of Scientology concerned about the use of a similar name.