Nickelodeon Animation Studio
Spongebob Squarepants May 1st 1999
Season 1 1999-2000 (20 episodes)
Season 2 2000-2002(1) (20 episodes)
Season 3 2001-2004 (20 episodes)
Season 4 2005-2007 (20 episodes)
Season 5 2007(1)(2) (20 episodes)
Season 6 2008-2009(2) (26 episodes)
Season 7 2009-2011 (26 episodes)
Season 8 2011-2012 (26 episodes)
Season 9 2012- (17/26 episodes)(3)

Fairly Odd Parents March 30 2001 (4)
Season 1 2001 (7 episodes)
Season 2 2002-2003 (15 episodes)
Season 3 2003 (17 episodes)
Season 4 2004-2005 (12 episodes)
Season 5 2005-2006 (19 episodes)
Season 6 2008 (12 episodes)
Season 7 2009-2010(1) (18 episodes)
Season 8 2011(1) (11 episodes)
Season 9 2013-2015 (26 episodes)
Season 10 2016- (3.5/20 episodes)

TMNT September 29 1012
Season 1 2012-2013 (26 episodes)
Season 2 2013-2014 (26 episodes)
Season 3 2014-2015 (26 episodes)
Season 4 2015-2016 (8/26 episodes)

Sanjay and Craig May 25 2013
Season 1 2013-2014 (20 episodes)
Season 2 2014-2015 (20 episodes)
Season 3 2015- (8/20 episodes)

Breadwinners February 17 2014
Season 1 2014-2015 (20 episodes)
Season 2 2015- (9/20 episodes)

Harvey Beaks March 28 2015
Season 1 2015- (21/26 episodes)

Pig Goat Banana Cricket July 16, 2015
Season 1 2015- (20/26 episodes)

The Loud House 2016
Pinky Malinky 2016
Welcome to the Wayne 2016
Bunsen Is a Beast! TBA
Sky Rat TBA

1: There's an episode in the season that was aired long after the rest, outside of the stated range
2: The half hour specials in the season were aired the year following the range given
3: the first 11 half hours of the season were produced before the movie and outside of some stragglers aired from 2012-2013.The remaining 15 were produced after the movie and started airing in 2015
4: there were 10 Oh Yeah Cartoons shorts aired from 1998-2001 prior to the show premiering

Disney Television Animation
Gravity Falls June 15 2012
Season 1 2012-2013 (20 episodes)
Season 2 2014-2016 (21 episodes)

Wander Over Yonder August 16, 2013
Season 1 2013-2014 (21 episodes)
Season 2 2015- (15/22 episodes)

The 7D July 7 2014
Season 1 2014-2015 (24 episodes)
Season 2 2016- (5/? episodes)

Penn Zero:Part-Time Hero December 5 2014
Season 1 2014-2015 (21 episodes)
Season 2 confirmed

Star Vs. the Forces of Evil January 18 2015
Season 1 2015 (13 episodes)
Season 2 confirmed

Pickle & Peanut September 2 2015
Season 1 2015- (13/? episodes)

Future Worm 2016
Milo Murphy's Law 2017
Billy Dilley’s Super Duper Subterranean Summer TBA

Marvel Animation
Ultimate Spider-Man April 1 2012
Season 1 2012 (26 episodes)
Season 2 2013 (26 episodes)
Season 3 2014-2015 (26 episodes)
Season 4 2016- (3/26 episodes)

Avengers Assemble May 26 2013
Season 1 2013-2014 (26 episodes)
Season 2 2014-2015 (26 episodes)
Season 3 announced

Guardians of the Galaxy	September 5 2015
Season 1 2015- (12/? episodes)

Lucasfilm Animation
Star Wars Rebels
Season 1 2014-2015 (13 episodes)
Season 2 2015-2016 (17/22 episodes)

Cartoon Network Studios
Adventure Time April 5 2010
Season 1 2010 (13 episodes)
Season 2 2010-2011 (13 episodes)
Season 3 2011-2012 (13 episodes)
Season 4 2012 (13 episodes)
Season 5 2012-2014 (26 episodes)
Season 6 2014-2015 (22 episodes)(5)
Season 7 2015- (11.5/20 episodes)(5)

Regular Show September 6 2010
Season 1 2010 (6 episodes)
Season 2 2010-2011 (14 episodes)
Season 3 2011-2012 (20 episodes)
Season 4 2012-2013 (20 episodes)
Season 5 2013-2014 (20 episodes)
Season 6 2014-2015 (16 episodes)(5)
Season 7 2015- (10/20 episodes)(5)(6)

Uncle Grandpa September 2 2013
Season 1 2013-2015 (26 episodes)(7)
Season 2 2015- (15/26 episodes)(5)

Steven Universe November 4 2013
Season 1 2013-2015 (26 episodes)(7)
Season 2 2015- (13.5/26 episodes)(5)

Clarence April 14 2014
Season 1 2014-2015 (26 episodes)(5)(7)
Season 2 2016- (5.5/26 episodes)

We Bare Bears July 27 2015
Season 1 2015- (14/26 episodes)(5)(8)

Long Live the Royals November 30 2015
Miniseries 2015 (2 half hours)

Powerpuff Girls 2016
Ben 10 2016/2017

5: One episode production slot in the season was used by a few shorts instead of a normal quarter hour episode, so if you discount the shorts the season .5 episodes shorter
6: there have been 2 further half hours worth of episodes available on CN's app only
7: the seasons were originally ordered to be 13 half hours long but were later extended prior to the series premiers
8: when the 25th (26th counting the shorts) episode premiered a crew member said that season 1 was halfway done, yet CN's advertising the 27th (28th counting the shorts) episode as the season 2 premier

Cartoon Network Developmental Studios Europe
The Amazing World of Gumball May 3 2011
Season 1 2011-2012 (18 episodes)
Season 2 2012-2013 (20 episodes)
Season 3 2014-2015 (20 episodes)
Season 4 2015- (10.5/20 episodes)

Warner Brothers TV Animation
Teen Titans Go! April 23 2013
Season 1 2013-2014 (26 episodes)
Season 2 2014-2015 (26 episodes)
Season 3 2015- (12.5/26 episodes)

The Tom and Jerry Show March 1 2014
Season 1 2014 (26 episodes)
Season 2 2016 (1.67/? episodes)

Wabbit September 21 2015
Season 1 2015- (10/? episodes)

Be Cool, Scooby-Doo! October 5 2015
Season 1 2015- (18/? episodes)

Bunnicula February 6 2016
Season 1 2016- (3/? episodes)

Justice League Action 2016
Wacky Races reboot 2016