What's New, Scooby-Doo? is the ninth incarnation of the Hanna-Barbera Saturday morning cartoon franchise Scooby-Doo. A revival of the original Scooby-Doo, Where Are You! after a decade-long gap in a new Scooby television show, it debuted in 2002. The series was developed and produced by Warner Bros. Animation and originally aired as part of the Kids' WB Saturday morning block on The WB Television Network. The Canadian punk band Simple Plan performs the theme song. What's New was the first Scooby-Doo series to feature Mindy Cohn and Grey DeLisle as the voices of Velma and Daphne respectively, the first where Frank Welker voiced Scooby, and the last chance to feature Casey Kasem as the voice of Shaggy.
The series first aired on Boomerang from January 9, 2006 until October 31, 2010. It returned to Boomerang's line-up on August 11, 2014, and left the schedule again on June 26, 2016. It returned again on February 6, 2017, replacing The Smurfs, and left the schedule again on April 2, 2017.
The show itself is a modernized version of the original Where Are You! series. It takes place in the 21st century and is more "realistic" than the previous, more cartoony incarnations, and features music from contemporary genres and all-new, original sound effects to replace the classic Hanna-Barbera sound effects. Even a distinctive thunderclap sound that was used frequently on older Scooby-Doo TV series was very rarely used on the show. A laugh track was only used for the Halloween special. The classic formula was also frequently parodied throughout (in a manner similar to A Pup Named Scooby-Doo), including the line "And I would've gotten away with it too, if it weren't for you meddling kids." As such, it returns to the formulaic version of humans in monster disguises, rather than the real monsters and ghosts of the prior four direct-to-video films (or the 1980s versions that preceded them).
The show was produced by Warner Bros. Animation, the successor to Warner Bros. Cartoons which the studio was famous for bringing the Looney Tunes/Merrie Melodies to life, which had by this time absorbed Hanna-Barbera Productions in 2001, after being bought by Time Warner from Turner Broadcasting since their merger in 1996. As is the standard for other classic Hanna-Barbera properties (Yogi Bear, The Flintstones, Wacky Races, etc.), the studio is still credited as the copyright owner, and Joseph Barbera, co-founder and co-chairman of the Hanna-Barbera studios, served as an executive producer alongside Sander Schwartz. Barbera's longtime partner William Hanna had died the year before.