From Loonipedia

Boomerang is a channel that launched on April 1st, 2000, so that the classic cartoons airing on CN could have a new home. The network in the United States aired Looney Tunes from 2004-2007, and 2013 - present. However, many other Looney Tunes related shows, including Tiny Toon AdventuresAnimaniacs , and Pinky & The Brain, have aired on Boomerang channels overseas.