The first episode of Adventure Time was aired on April 5, 2010.
The first episode of Adventure Time that aired on Cartoon Network entitled "Slumber Party Panic" on April 5th 2010 was viewed by 2.5 million viewers in the U.S.
The Adventure Time animated short (often referred to as the pilot) was released on Nickelodeon on December 7, 2008. Due to its overwhelming popularity, a series was created, and Adventure Time's first episode, Slumber Party Panic, was aired on Cartoon Network on April 5, 2010.
It only came out on April 3rd, its going to take a while for a good quality video of it to come out.
Keanu and Nic's Excellent Adventure - 2013 April in LA 1-9 was released on: USA: 6 April 2013
A Cowboy's Adventure - 1911 was released on: USA: 12 April 1911
A Midnight Adventure - 1911 was released on: USA: 12 April 1911
An Adventure in Sicily - 1911 was released on: USA: 10 April 1911
The Last Adventure - 1916 was released on: USA: 15 April 1916
April 5, 2010 - present .
It is coming on April 29, 2011.
Adventure in Boogie Woogie - 1946 was released on: USA: 15 April 1946
The Adventure of the Stolen Papers - 1914 was released on: USA: 20 April 1914