The third season of Arthur premiered on PBS in November 1998. This season was funded by the Corporation for Public Broadcasting, Viewers Like You, Libby's Juicy Juice, and Baby Gap. It was also the last to contain the PBS Kids' "P-Pals" logo on initial broadcasts.
The first 10 episodes aired from November 16–27, 1998, while the last five episodes premiered from December 28 to January 1, 1999. It first reran from February 15 to March 5, 1999.
Post Alpha-Bits joined the show starting on May 17, 1999, when Season 3 reruns began a third time, lasting through June 4. The season reran a fourth time from August 16 to September 3, 1999.
In later years, this was followed by the U.S. Department of Education as a main underwriter, then Lego replaced Baby Gap in 2000, Chuck E. Cheese's replaced Lego in 2002, Teddy Grahams replaced Post Alpha-Bits in 2004, and Dannon Danimals replaced Rhodes 60-Second Cinnamon Rolls in 2006.
|1b||The Ballad of Buster Baxter|
|2a||D.W. All Fired Up|
|2b||I'd Rather Read It Myself|
|3a||Arthur Goes Crosswire|
|3b||Sue Ellen and the Brainasaurous|
|4b||And Now Let's Talk to Some Kids|
|5a||The Chips Are Down|
|5b||Revenge of the Chip|
|7a||Arthur Rides the Bandwagon|
|7b||Dad's Dessert Dilemma|
|8b||Buster's Growing Grudge|
|9a||Arthur's Treasure Hunt|
|9b||The Return of the King|
|10a||Attack of the Turbo Tibbles|
|10b||D.W. Tricks the Tooth Fairy|
|11a||Double Tibble Trouble|
|11b||Arthur's Almost Live Not Real Music Festival|
|12a||What Scared Sue Ellen?|
|12b||Clarissa is Cracked|
|13a||Arthur's Dummy Disaster|
|13b||Francine and the Feline|
|14a||Mom and Dad Have a Great Big Fight|
|14b||D.W.'s Perfect Wish|
|15a||Arthur and D.W. Clean Up|
|15b||The Long, Dull Winter|