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.
When a prehistoric Sponge is unfrozen, he causes chaos all over town - and only SpongeBob can communicate with him! When a flock of clams descend on Bikini Bottom, SpongeBob has to get them out before they ruin the whole town!