Comedy Central has announced a $75 million deal with Trey Parker and Matt Stone, creators of the animated hit South Park. Through the terms of the deal, three more 14-episode seasons of South Park will come to the cable channel. This will carry the series through 2011, marking a decade and a half of those four foully potty-mouthed tikes. Now that the animated cable show has scored such a big payout, which includes a share of digital revenues, questions are being raised. Will other big ratings-grabbers demand similar payouts, and a stake in Web share? Meanwhile, Comedy Central is in negotiations with Jon Stewart, beloved host of The Daily Show. Stewart’s current contract expires in 2008.