2020

6

 * Infinity Train aired its season two premiere titled Book Two: Cracked Reflection.

10

 * Infinity Train aired its season two finale before moving to HBO Max.
 * Cartoon Network Hotel opens.

11

 * Total DramaRama aired its season two premiere.

19

 * Ben 10 aired its season four premiere.

30

 * New Looney Tunes aired its series finale.

3

 * On its Asia and Australia feeds, a song was released displaying what would be playing this year.

17

 * Teen Titans Go! vs. Teen Titans made its world television premiere.

22

 * ThunderCats Roar aired as a series premiere.

1

 * Bakugan: Armored Alliance premiered.

27

 * Steven Universe Future aired its series finale.

11

 * Apple & Onion aired its season one finale.

14

 * Sesame Street: Elmo's Playdate simulcasted on HBO, TBS, TNT, TruTV, Cartoon Network, Boomerang, and PBS Kids to help kids cope with COVID-19.

18

 * Victor and Valentino aired its season two premiere.

27

 * HBO Max was launched.
 * Looney Tunes Cartoons released its series premiere on HBO Max.

30

 * The Life and Times of Juniper Lee celebrated its 15th anniversary.

11

 * Craig of the Creek aired its season two finale.

14

 * Power Players aired its series finale.

18

 * Summer Camp Island released its second season on HBO Max.

21

 * Craig of the Creek aired its season three premiere.

25

 * Adventure Time Distant Lands released its first special, BMO on HBO Max.

30

 * We Bare Bears: The Movie released digitally.

1

 * Tom Ascheim became the president of Warner Bros. Global Kids, Young Adults And Classics starting in and will succeed interim president Michael Ouweleen (who will become president of Adult Swim).

2

 * Scooby-Doo and Guess Who? aired the other half of its first season and its season one finale.

6

 * Mao Mao: Heroes of Pure Heart returns for new episodes.

9

 * Close Enough released exclusively on HBO Max.

17

 * Mao Mao: Heroes of Pure Heart aired its season one finale.

20

 * Apple & Onion aired its season two premiere.

21

 * Trick Moon was uploaded to Cartoon Network's YouTube channel.

23

 * Tig n' Seek premiered on HBO Max.

1

 * Steven Universe: The Movie was added to HBO Max.

10-14

 * Teen Titans Go! special titled Where Exactly on the Globe is Carl Sanpedro aired.

13

 * Infinity Train released its season three premiere titled Book Three: Cult of the Conductor on HBO Max.

20

 * The Fungies! premiered on HBO Max.

27

 * Unikitty! aired its final episode and series finale.
 * Infinity Train released its season three finale on HBO Max.

28

 * Steven Universe Future was added to HBO Max.

1

 * OK K.O.! Let's Be Heroes, Mao Mao: Heroes of Pure Heart and Over the Garden Wall were added to HBO Max.
 * Scooby-Doo and Guess Who? aired the first half of its second season.

7

 * We Bare Bears: The Movie premiered on Cartoon Network.

13

 * Ben 10 returned for new episodes.

5

 * Cartoon Network airs it's programming block, "Treat-A-Thon".
 * Victor and Valentino returned for new episodes.

8

 * The Fungies returned for new episodes and were added to HBO Max.

10

 * Ben 10 Versus the Universe: The Movie premiered, thus airing its season four finale.

19

 * Craig of the Creek airs its Halloween special "Trick or Creek".

19

 * Adventure Time: Distant Lands released its second special, Obsidian on HBO Max.

23-25

 * Steven Universe: The Movie, We Bare Bears: The Movie returns and Teen Titans Go! to the Movies'' makes its premiere on Cartoon Network.

4-5

 * Holiday Hangout and December Moviefest, two new holiday blocks airs all month long on Cartoon Network.

5

 * ThunderCats Roar aired its series finale.

10

 * Summer Camp Island released its season three premiere on HBO Max.

20

 * Wonder Woman Saturday launches as a programming block.

24

 * Summer Camp Island released its season three finale on HBO Max.

25

 * Paddington and Paddington 2 aired on Cartoon Network.

27

 * DC Super Hero Girls aired its season one finale.