It began in April 2001 as a morning block airing at 10:00 am – 12:00 pm, but in August 2001 also aired as an hour-long mini-block in Cartoon Network After Dark. The shows on Boomerang changed randomly every week, for both the morning and the evening block.
Boomerang's programming schedule was initially a morning block from 10:00 am to 12:00 pm, but later expanded to an hour-long block on Cartoon Network After Dark in August 2001. The shows were randomly selected each week for both the morning and evening blocks.