They're silent, deadly, and they attack you when you least expect. Yes, we're taking about sharts, one of nature's deadliest creations. This week on Comedy Central Extra we're teaching you everything you need to know about them with a series of shart-themed South Park episodes from 9pm. You can check out the full list of episodes below, but first here's an informative video:
9pm - Death (S1 Ep6) - Stan's ancient grandfather attempts to trick the boys into killing him. Meanwhile, the parents of South Park lobby a TV network to rid the airwaves of Terrance and Phillip.
9.30pm - Mr. Hankey, the Christmas Poo (S1 Ep9) - The Mayor decides to impose an inoffensive holiday theme, which won't offend anybody. Kyle tries to convince everyone that Mr Hankey (a singing Christmas poo) exists.
10pm - Worldwide Recorder Concert (S3 Ep 17) - The class visit Mr Garrison's hometown of Arkansas for a recorder concert, where they attempt to find the mysterious 'brown noise'. What part does Kenny G play in this?
10.30pm - Fat Camp (S4 Ep 15) - Cartman gets sent to 'fat camp' in order to resolve his weight problem but all is not as it seems when he returns skinny. Kenny gets his own TV show where he performs disgusting acts.
9pm - A Very Crappy Christmas (S4 Ep17) - When Mr Hankey fails to show up at Christmas time the boys go looking for him in the sewers. Can the gang revive the spirit of Christmas in South Park with their own cartoon?
9.30pm - My Future Self 'n' Me (S6 Ep16) - After meeting his failed self from the future, Stan decides to avoid drink and drugs - but why does Butters also have a good-for-nothing future self staying with him?
10pm - Red Hot Catholic Love (S6 Ep8) - When the boys are asked whether Father Maxi has ever put anything in their butts, Cartman reasons it could be possible to defecate from the mouth if you eat with your behind!
10.30pm - Douche and Turd (S8 Ep14) - The pupils of South Park Elementary are called upon to vote for a new mascot. With the choices being a "giant douche" and a "turd sandwich" is there any point? Stan doesn't think so!
9pm - Mystery of the Urinal Deuce (S10 Ep9) - When someone defecates in a urinal at school, Cartman rants that it's a conspiracy "just like 9/11!" Soon the entire town think so too! Time for a trip to the White House.
9.30pm - More Crap (S11 Ep9) - Inadvertently, Randy breaks the world record for the 'biggest cr*p'! Bono, the previous holder, is determined to regain his crown - but he has a dark secret which may stop him...
10pm - Something Wall-Mart This Way Comes (S9 Ep 14) - When a new mall is built in South Park, the townsfolk become addicted to shopping there - it'll take the boys hunting down its evil "heart" to end their misery!
10.30pm - Eat, Pray, Queef (S13 Ep 4) - When a new Canadian show called The Queef Sisters starts a 'queefing' craze the men of South Park are disgusted by this new female craze and move to get it banned.
9pm - Dead Celebrities (S13 Ep8) - The ghost of Michael Jackson refuses to accept his demise, leaving the rest of the recently departed celebrities frustrated in purgatory and poor little Ike having ghostly visits!
9.30pm – Pee (S13 Ep14) - High levels of pee in the pool cause a massive disaster which ruins the day for the boys, Kyle especially. Cartman's xenophobia pops up again when he believes himself "the last of his species".
10pm - The Tale of Scrotie McBoogerballs (S14 Ep2) - Butters gets the blame, and then the glory, after the boys write a book intended to be gratuitously rude but which is hailed as a masterpiece. Murder is the answer!
10.30pm - You're Getting Old (S15 Ep7) - When Stan gets a Tween Wave CD for his birthday his parents ban him from listening to this "cr**". When Stan starts agreeing with them the boys are not impressed.
9pm - Bass to Mouth (S15 Ep10) - When South Park Elementary is the victim of a gossip website, named Eavesdropper, all hell breaks loose - who will save the day; Cartman or Gerbil King Lemmiwinks?
9.30pm - Reverse Cowgirl (S16 Ep1) - When Clive leaves the toilet seat up no one could foresee it would have such dire consequences. The boys' efforts to help him through the aftermath lead to all manners of spookiness.
10pm - I Should Have Never Gone Ziplining (S16 Ep6) - The boys are all excited to be going ziplining in the forest but boring tourists, tummy troubles and herpes all get in the way! Featuring a very special guest star.