| Previous Year | Current Year | Next Year |
| 1998 | 1999 | 2000 |
Show Info
Cartoon Network Original Series
| # Cartoon | Name | Premiere Date | End Date |
|---|---|---|---|
| Ed, Edd n Eddy | January 4, 1999 | November 8, 2009 | |
| I Am Weasel | July 22, 1999 | September 16, 1999 | |
| Mike, Lu & Og | November 12, 1999 | May 27, 2001 | |
| Courage the Cowardly Dog | November 12, 1999 | November 22, 2002 |
Acquired Series
| # Cartoon | Name | Premiere Date | End Date |
|---|---|---|---|
| Jonny Quest: The Real Adventures | August 26, 1996 | September 24, 1999 |
January
4
- Cartoon Network's 9th original series, Ed, Edd n Eddy, premieres with the episode, "The Ed-Touchables
/Nagged to Ed".
February
8
- The 4th and final season of Cow and Chicken premieres with the episode, "Invisible Cow/Monster in the Closet/I Am Hairstylist".
June
11
- The weekly programming block, Cartoon Cartoon Fridays, premieres.
25
- The 2nd season of The Powerpuff Girls premiered with the episode, "Stuck Up, Up and Away/Schoolhouse Rocked".
July
2
- The 2nd season of Johnny Bravo premieres with the episode, "Bikini Space Planet/Moby Jerk/A Gel For Johnny".
10
- A late night Toonami programming block, Midnight Run, premieres from Midnight to 5:00am.
- The new host of Toonami, TOM, is introduced during the first Midnight Run broadcast. (technically at 11:55pm on July 9th)
22
- Cartoon Network's 10th original series, I Am Weasel, premieres as a standalone series, after airing as a segment of Cow and Chicken from 1997 to 1999.
24
- The final season of Cow and Chicken concludes with the episode, "The Cow and Chicken Blues/The Ballad of Cow and Chicken/I Are Good Salesman".
August
20-22
- Cartoon Network airs its 3rd annual Cartoon Cartoon Weekend.
November
12
- Cartoon Network's 11th original series, Mike, Lu & Og, premieres with the episode, "Sultans of Swat/Tea for Three".
- Cartoon Network's 12th original series, Courage the Cowardly Dog, premieres with the episode, "A Night at the Katz Motel/Cajun Granny Stew".
December
10
- The Dexter's Laboratory animated film, Ego Trip, premieres.
18-19
- Cartoon Network airs a 2-day Looney Tunes marathon in celebration of New Years, titled the Mil-Looney-Um.
30
- The early morning programming block, Cartoon-A-Doodle-Doo, airs for the final time.
- Cartoon Network airs a 36 hour Jetsons marathon in celebration of New Years, titled The Jetsons Millennium Marathon.