Cartoon Network. Originally a programming block, the channel is dedicated to classic cartoons. Most of them are Hanna-Barbera shows including Scooby Doo and Josie & The Pussycats as mere examples. The channel premiered on April 1, 2000.
Boomeraction is a part of Boomerang that runs from 10:30 PM to 12:30 AM. It shows classic cartoons and old Cartoon Network cartoons that have a lot of action in them.