In 'Fairy Idol', when Norm is singing, Cosmo and Wanda say they are going up next. But Jorgen says there are no duets in Fairy Idol. So how come Norm and Cosmo were singing together???

Also, later on when Timmy goes home, Chester makes wishes, then watches the news, and Chet says the world is in danger or somthing like that. The screen behind him says 'Santa Sinks', but he said more that one thing. Shouldn't the sign have changed???