The Simpsons' fifteenth season began on Sunday, November 2, 2003, with "Treehouse of Horror XIV". The season contains five hold-over episodes from the season 14 (EABF) production line. The most watched episode had 16.2 million viewers and the least watched had 6.2 million viewers.建筑系统：提供大量(liàng )的功能性建筑物予(yǔ )以发展，具体功能(néng )请自行探索。