A set of five proposed public service announcements were created to be tagged onto the end of episodes from the second season of the series, re-using the scripts from similar PSAs created for sister series "", complete with the catchphrase "...and knowing is half the battle!" These were never actually aired on television, but eventually appeared as bonus features on various DVDs and video games. For the third season, episodes were tagged with "The Secret Files of Teletraan II", a series of short featurettes that used clips from the show and new narration from Caroli to provide histories for the Autobots, the Decepticons, the Quintessons, and other subjects.