which season of this oh yeah! cartoons spinoff show has more than 18 episodes?
(AND tv.tv_series_season (AND (JOIN tv.tv_series_season.series (JOIN tv.tv_program.spun_off_from m.01_1sr)) (gt tv.tv_series_season.number_of_episodes 18^^http://www.w3.org/2001/XMLSchema#integer)))