The Book of General Ignorance round differs, in particular during the Christmas specials. During the course of the "B" Series special, Fry and Davies swapped places for "General Ignorance", with Fry attempting to answer questions ostensibly written by Davies to stump him. During "D"s Christmas Special, all the "GI" questions revolved around saints. "The Book of General Ignorance" contains a list of 230 questions, most of which previously appeared in episodes of "QI". Each question explains the correct answer, and usually attempts to show why people tend to make the wrong assumptions, or believe certain myths. Each book contains two forewords, one by Fry, the
The Fight Before Christmas Matthew Schofield. Similar to the show's "Treehouse of Horror" episodes, this episode features several segments. Since all four of them are set during Christmas, the episode was originally broadcast in December 2010. There have been many Christmas episodes on "The Simpsons" ever since the first episode of the series, the 1989 holiday special "Simpsons Roasting on an Open Fire", and "The Fight Before Christmas" was not the first time a Christmas episode was divided into segments. Several parts of the episode were inspired by popular culture. The train that appears in the first dream segment references the train featured in