first episode of the season, it is explained to the dismayed IHP students that Mr. Moore's acting career finally took off). Despite initial uncertainty and some hostility from the students, Billy proved to be a successful replacement for Charlie. He usually comes into the class bringing his bike. He insisted that the students refer to him by his first name, and although he was more rousing and less laid-back than his predecessor, he proved to be just as wise and caring (Billy also had a habit of boisterously greeting his class every morning with the phrase, "good morning, geniuses", and facetiously barking to his students to, "get out of here", when the bell rang at the end of the class. He also taught his class in a manner more akin to a stand-up comedian than a teacher). Many episodes from this season focused on Billy having to adapt to living in America, and his attempts to romance Ms. Meara. Other aspects of Billy were his dislike of an outdated French textbook, which actually prompted one student to take a spur-of-the-moment jaunt to Paris, and his encouragement to the male students that the best way to get girls was to be themselves. The season (and the program itself) concluded with the IHP students graduating from high school. Janice Lazarotto (from seasons one–three) returned for a guest appearance in the finale, in which T.J. is named class valedictorian and the school is closed down and demolished. Episodes Novel tie-in One major novelization was released, with the plot lines based on six episodes of the show. The book makes all the chapters flow together as one story, even though they didn't happen one right after the other on the show. It was written by Susan Beth Pfeffer and released in December 1989 by Bantam Books. The book is 120 pages long, with six chapters, each based on a different episode. Chapter 1 – "First Day", based on the 1986 episode written by Lisa Rosenthal (otherwise known as the pilot) Chapter 2 – "A Problem Like Maria" is based on the 1986 episode written by Cynthia Thompson Chapter 3 – "Crimes of the Heart" is based on the 1987 episode written by Valri Bromfield Chapter 4 – "Cello Fever" is based on the 1987 episode written by show creators Rich Eustis and Michael Elias Chapter 5 – "Trouble in Perfectville" is based on the