When does Toonami Pre-Flight return?

Toonami is an American late-night television programming block that broadcasts Japanese anime and American action animation. It was created by Sean Akins and Jason DeMarco and produced by Williams Street, a division of Warner Bros. Television Studios. The name is a portmanteau of the words "cartoon" and "tsunami" It was originally a weekday afternoon block on Cartoon Network from 1997 until 2004, when it transitioned into a Saturday evening format until its final airing four years later.