Funny episode
"Cartman: Hey, dudes! Check out my sweet Dawson's Creek Trapper Keeper Ultra Keeper Futura 2000! Yeah, well it's got ten different compartments for every subject in school, an electronic pencil sharpener, four plastic bags with electronic zippers, copy machine, fax, a better picture of Dawson's Creek on the back than Kyle's, flat-screen TV, and of course OnStar!"
Later on after the trapper keeper takes over the town, a cyborg that looks like Bill Cosby comes back in time from the year 2034 to destroy the trapper keeper.