The Powerpuff Girls ends with the episodes "Nuthin' Special/Neighbor Hood" and "I See a Funny Cartoon in Your Future/Octi Gone", both were originally made for seasons 4/5.
Hi Hi Puffy AmiYumi concludes it's first season with the episodes "Eye Sore/Mean Machine/Sea Sick".
28[]
Adult Swim separates from Cartoon Network in the Nielsen ratings and expands to 6AM.
April[]
1[]
The Grim Adventures of Billy & Mandy episodes "He's Not Dead, He's My Mascot/Hog Wild" premiere.
8[]
Krypto the Superdog episodes "Dog-Gone Kevin/The Dark Hound Strikes!" premiere.
The Baby Looney Tunes episodes "Blast Off Bugs/Baby Brouhaha" premiere.
The Grim Adventures of Billy & Mandy episodes "The Bad News Ghouls/The House of No Tomorrow" premiere.
The Duck Dodgers episodes "The Kids Are All Wrong/Win, Lose or Duck" premieres.
15[]
Krypto the Superdog episodes "Puss in Space Boots/Teeny Tiny Trouble" premiere.
The Baby Looney Tunes episodes "Wrong!/Win, Lose or Daffy" premieres.
The Grim Adventures of Billy & Mandy episodes "Happy Huggy Stuffy Bears/The Secret Decoder Ring" premiere.
The Duck Dodgers episodes "Boar to Be Riled/Clean Bill of Health" premieres.
Krypto the Superdog episodes "Melanie's Monkey/Funny Business" premiere.
Season 2 of Hi Hi Puffy AmiYumi premieres with the episodes "Koi Fish/Arbor Day/Ami Ami".
The Duck Dodgers episodes "The Best of Captains, the Worst of Captains/That's Lifomatica" premieres, as well as the last episode to air on Cartoon Network.
29[]
The Codename: Kids Next Door episodes "Operation: S.I.T.T.E.R./Operation: S.A.T.U.R.N." premiere.
May[]
6[]
The Codename: Kids Next Door episodes "Operation: C.H.O.C.O.L.A.T.E./Operation: M.A.T.A.D.O.R." premiere.
The Foster's Home for Imaginary Friends episode "Mac Daddy" premieres.
13[]
The Codename: Kids Next Door episodes "Operation: L.U.N.C.H./Operation: M.U.N.C.H.I.E.S." premiere.
The Foster's Home for Imaginary Friends episode "Squeakerboxxx" premieres.
20[]
The Codename: Kids Next Door episodes "Operation: K.N.O.T./Operation: C.L.O.S.E.T." premiere.
The Foster's Home for Imaginary Friends episode "Beat with a Schtick" premieres.
27[]
The Codename: Kids Next Door double-length episode "Operation: S.N.O.W.I.N.G." premieres.
The Foster's Home for Imaginary Friends episode "The Sweet Stench of Success" premieres.
The Hi Hi Puffy AmiYumi episodes "Visiting Hours/Kitty Kontest/Chow Down" premiere.
Krypto the Superdog episodes "Bat Hound Meets the Dog Stars/A Dog's Life" premiere.
The Hi Hi Puffy AmiYumi episodes "Hungry Yumi/The Oddyguard/Song Sung Bad" premiere.
Krypto the Superdog episodes "Stray for a Day/Ruffled Feathers" premiere.
The Grim Adventures of Billy & Mandy episodes "Wild Parts/The Problem with Billy" premiere.
5[]
The Life and Times of Juniper Lee episode "I've Got My Mind on My Mummy and My Mummy on My Mind" premieres.
10[]
The Hi Hi Puffy AmiYumi episodes "Helping Hand/Neat Freak/Hypno-Kaz" premiere.
Krypto the Superdog episodes "Bat Hound and the Robin/Furry Fish" premieres.
The Grim Adventures of Billy and Mandy double-length episode "Wishbones" premieres.
12[]
The Life and Times of Juniper Lee episode "It Takes a Pillage" premieres.
17[]
The Hi Hi Puffy AmiYumi episodes "In Harmony's Way/Time Off/Home Insecurity" premiere, leading to the show going into hiatus for 2 months.
Krypto the Superdog episodes "Tusky's Tooth/When Penguins Fly" premiere, leading to the show going into hiatus for 6 months.
The Grim Adventures of Billy and Mandy concludes it's third season with the episodes "Dream Mutt/Scythe For Sale".
19[]
The Life and Times of Juniper Lee April Fools episode "New Trickster in Town" premieres.
24[]
Season 4 of The Grim Adventures of Billy and Mandy premieres with the episodes "Jeffy's Web/Irwin Gets a Clue" & "Duck!/Aren't You Chupacabra To See Me?" premiere.
26[]
The Life and Times of Juniper Lee episode "Not in My Backyard" premieres.
27[]
The Grim Adventures of Billy and Mandy episodes "Zip Your Fly!/Puddle Jumping" premiere.
28[]
The Grim Adventures of Billy and Mandy episodes "Runaway Pants/Scythe 2.0" premiere.
29[]
The Grim Adventures of Billy and Mandy episodes "The Firebird Sweet/The Bubble with Billy" premiere
30[]
The Grim Adventures of Billy and Mandy episodes "Billy Idiot/Home of the Ancients" premiere.
July[]
1[]
The Foster's Home for Imaginary Friends episode "Bye Bye Nerdy" premieres.
3[]
The Life and Times of Juniper Lee episode "Enter Sandman" premieres.
8[]
The Foster's Home for Imaginary Friends episode "Bloo Done It" premieres.
The Codename: Kids Next Door two-part episode "Operation: M.A.U.R.I.C.E." premieres.
Cartoon Network's 25th Original Series, Camp Lazlo, officially premieres with the episodes "Gone Fishin' (Sort of)/Beans Are from Mars" & "Snake Eyes/Racing Slicks".
10[]
The Life and Times of Juniper Lee episode "Ding Dong, the Witch Ain't Dead" premieres.
15[]
Foster's Home for Imaginary Friends concludes it's second season with the episode "My So Called Wife".
The Codename: Kids Next Door episodes "Operation: L.O.V.E./Operation: C.O.U.C.H." premiere.
The Camp Lazlo episodes "Lights Out/Swimming Buddy" premiere.
17[]
The Life and Times of Juniper Lee episode "I'll Get By with a Little Help from My Elf" premieres.
22[]
Season 3 of Foster's Home for Imaginary Friends premieres with the episode "Eddie Monster".
Codename: Kids Next Door concludes it's fourth season with the episodes "Operation: D.O.D.G.E.B.A.L.L./Operation: F.E.R.A.L.".
The Camp Lazlo episodes "Parasitic Pal/It’s No Picnic" premiere.
24[]
The Life and Times of Juniper Lee episode "The World According to L.A.R.P." premieres.
27[]
Bugs Bunny celebrates his 65th anniversary.
29[]
The Camp Lazlo episodes "The Weakest Link/Lumpy Treasure" premiere.
The Grim Adventures of Billy & Mandy double-length episode "My Fair Mandy" premieres.
31[]
The Life and Times of Juniper Lee episode "Magic Takes a Holiday" premieres.
August[]
5[]
The Camp Lazlo episodes "Tree Hugger/Marshmallow Jones" premiere.
The Grim Adventures of Billy and Mandy episodes "One Crazy Summoner/Guess What’s Coming to Dinner?" premiere.
7[]
The Life and Times of Juniper Lee episode "Take My Life, Please" premieres.
12[]
The Camp Lazlo episodes "Dosey Doe/Prodigious Clamus" premiere.
The Grim Adventures of Billy and Mandy episodes "Mommy Fiercest/The Taking Tree" premiere.
14[]
The Life and Times of Juniper Lee episode "Meet the Parent" premieres.
19[]
The Camp Lazlo episodes "The Nothing Club/Loogie Llama" premiere.
21[]
The Life and Times of Juniper Lee season one finale "Monster Con" premieres.
22[]
Cartoon Network's newest attempt at a preschool block, Tickle U, premieres.
26[]
The Hi Hi Puffy AmiYumi episodes "Uninvited/Camping Caper/Cell Block Rock" premiere.
The Camp Lazlo episodes "Float Trippers/The Wig of Why" premiere.
September[]
2[]
The Hi Hi Puffy AmiYumi episodes "AmiYumi 3000/The Ride Stuff/Were-Kaz" premiere.
The Camp Lazlo episodes "Prickly Pining Dining/Camp Kidney Stinks" premiere.
5[]
The Camp Lazlo episodes "Slugfest/Beans and Weenies" premiere.
The Foster's Home for Imaginary Friends episode "Hiccy Burp" premieres.
9[]
The Foster's Home for Imaginary Friends episode "Camp Keep a Good Mac Down" premieres.
The Hi Hi Puffy AmiYumi episodes "Ski Sick/Claw and Order/Janice Jealous" premiere.
The Camp Lazlo episodes "Beans & Pranks/Movie Night" premiere.
16[]
The Foster's Home for Imaginary Friends episode "Imposter's Home for Um... Make 'Em Up Pals" premieres.
The Hi Hi Puffy AmiYumi episodes "Domo/Yumi Goes Solo/Cat Feud" premiere.
Camp Lazlo concludes it's first season with the episodes "The Big Cheese/Campers All Pull Pants".
17[]
Speedy Gonzales celebrates his 50th anniversary.
23[]
The Foster's Home for Imaginary Friends episode "Duchess of Wails" premieres.
24[]
Cartoon Planet returns to reruns on Adult Swim as the last show of the block.
29[]
The Evil Con Carne episode "Ultimate Evil" premieres on Europe at 6:25 AM in the morning.
Season 5 of Codename: Kids Next Door premieres with the double-length episode "Operation: E.L.E.C.T.I.O.N.S.".
October[]
7[]
The Grim Adventures of Billy and Mandy episodes "Reap Walking/The Loser From The Earth's Core" premiere.
9[]
The second season of The Life and Times of Juniper Lee premieres with the Halloween special "It's the Great Pumpkin, Juniper Lee", leaving the show on hiatus for the rest of the year.
The Codename: Kids Next Door episodes "Operation: D.U.C.K.Y./Operation: D.I.A.P.E.R." premiere.
Originally premiered on September 25th by accident.
Season 2 of Camp Lazloofficially premieres with the episodes "Hallobeanies/Meatman".
Originally premiered on October 1st by accident.
The Grim Adventures of Billy & Mandy episodes "Ecto Cooler/The Schlubs" premiere.
21[]
The Codename: Kids Next Door episodes "Operation: B.U.L.L.I.E.S./Operation: F.I.S.H.Y." & "Operation: B.R.E.A.K.U.P./Operation: S.A.F.A.R.I." premiere.
The Grim Adventures of Billy & Mandy double-length episode "Prank Call of Cuthulu" premieres.
