I knew South Park made its episodes pretty fast, but
OH MY GOD HOW THE HELL DID THEY DO THIS IN 24 HOURS (link itself is work-safe, episode is not).
Realistically speaking about half of that episode could easily have been done well in advance, but still, a good portion of this episode could not possibly have been done any sooner than the last 24 hours or so before the episode aired, and good LORD I am AMAZED at how they did this that quickly.
Bravo, Trey Parker and Matt Stone. Bravo. Truly nothing is sacred to you, and I applaud you to no end for it.