Question: The fifteenth season of South Park included the finale episode that first aired on what date?
Sentence (from "South Park (season 15)"): In response to reactions to the mid-season finale episode "You're Getting Old", which seemed to insinuate that creators Trey Parker and Matt Stone were wrapping up the series, Comedy Central proclaimed through the media that "South Park" was renewed for two more seasons, and the duo were signed through 2013.
Relevant evidence: No