Every episode begins with a disclaimer, which reads:
"Wonder Showzen contains offensive, despicable content that is too controversial and too awesome for actual children. The stark, ugly and profound truths Wonder Showzen exposes may be soul-crushing to the weak of spirit. If you allow a child to watch this show, you are a bad parent or guardian."
Wonder Showzen was created by John Lee and Vernon Chatman and pitched to the USA Network in 2000, but after a few minutes of viewing, executives there quickly concluded it did not fit the network's programming style. However, Viacom was re-branding MTV2 and made Wonder Showzen part of its new programming lineup. It aired as part of Sic 'Em Fridays, along with Dirty Sanchez and Wildboyz. The pilot was named simply "Kids Show". The Wonder Showzen theme song is still 'Kids Show'. Reruns of the show also air on MTV and Comedy Central.
MTV released the first season of Wonder Showzen on DVD March 28, 2006. The second season of Wonder Showzen premiered on March 31, 2006 and had its season-two finale starring Clarence on May 19, 2006 on MTV2. This season was released on DVD October 10, 2006, with an easter egg that featured an animation contest. The grand prize was announced as the winner's animation appearing on "the next DVD", but the creators later said a third season was unlikely, and MTV afterward canceled the show. A return is even more unlikely as the creators of Wonder Showzen went on to produce the animated series Xavier: Renegade Angel.
Beat Kids – One of the children, most often Trevor, leads a journalistic segment with mostly offensive, humorous questions, ridiculing interviewees at a given venue. The segment appears in almost every episode.
What's Jim Drawing? – Appeared in episode 202 and 206.
Horse Apples – A segment in episode 203, which later expanded into an entire episode in 207, that parodies Hee Haw and redneck comedy. The latter episode featured several guest actors.
Funny/Not Funny – A series of clips, often depicting violent or macabre images, airs with a chorus of children yelling either "funny" or "not funny".
So Now You Know – A parody of "The More You Know", Where kids say questions and a computer shows their answers. It appeared twice on season one and once on season two in episode 205.
Q&A – A series of children each answer a single question.
Breaking News – Features the news reporter.
We Went To... – Children narrate an ostensibly educational trip while old stock film airs.
Clarence's Movies – Clarence the puppet interviews people on the street on a common theme, usually antagonistically or obnoxiously, which is often reciprocated by violence or threats.
Story Time – A special guest reads a story to the children. Guests have included Flavor Flav (as himself although it was unaired), Jon Glaser (as Mr. Story), David Cross (as a hostage), and Amy Sedaris (as Ms. Amy).
Altered version of the pilot episode. The gang tries to help out the depressed Letter N.
March 18, 2005 (2005-03-18)
Chauncey and his friend Kaitlin go into outer space. They confront God after the Earth is destroyed during their trip.
March 25, 2005 (2005-03-25)
The gang go on a quest to find a bottle of pure liquid Imagination.
April 1, 2005 (2005-04-01)
Letters and Numbers have a war over who is better, while two members of the schism fall in love.
April 8, 2005 (2005-04-08)
Chauncey must save the day when Mother Nature gets a sex change operation.
April 15, 2005 (2005-04-15)
Number 2 comes to visit the gang in Number 1's place and becomes suicidal when no one likes her.
April 22, 2005 (2005-04-22)
When Wordsworth comes down with a case of the cooties, Him uses it to his advantage and sells Wordsworth's encrusted sores as snack treats.
April 29, 2005 (2005-04-29)
Season 1 Finale. An episode which tries the viewer's patience, consisting of a first act, and then after realizing how little sense the first act made, the first act in reverse to "undo what has been done", and then a third act occurring quickly by editing it for more time by putting another highlight for this show in the end.
The gang convinces the overweight Letter P to get liposuction.
April 7, 2006 (2006-04-07)
Chauncey's future self from two minutes into the future causes havoc for Chauncey in the present time.
April 14, 2006 (2006-04-14)
Middle America visits the show and the gang falls in love with his Stupid. They let him take over Wonder Showzen, turning it into "Horse Apples." (First episode that has two "Beat Kids" segments).
April 21, 2006 (2006-04-21)
The gang revisits the old days of America with slavery.
April 28, 2006 (2006-04-28)
Chauncey and Him climb into Wordsworth's brain to help him face his fears and become a man.
May 5, 2006 (2006-05-05)
The gang goes to war with a bootleg version of Wonder Showzen. The "peace settlement" is that the show be divided 60-40, thus the final act has several separate bits with full sound going on at the same time.
May 12, 2006 (2006-05-12)
An entire episode of "Horse Apples" instead of the episode originally shown in previews for this week.
"The Clarence Special Report on Compelling Television"
May 19, 2006 (2006-05-19)
Season 2 Finale/Series Finale. Clarence challenges New Yorkers to produce compelling television.