DuckTales
The cartoon premiered worldwide between 18–20 September 1987 (the time and date varying between markets), with a television movie special entitled ""The Treasure of the Golden Suns"", which was later split up into a five-part serial in future reruns. The first season, aired between 1987–88, consisted of 65 episodes, the "magic number" requirement needed for a show to have a weekday syndication (five days a week for thirteen weeks). Disney then commissioned three more seasons – the second season (aired between 1988–89) consisted of two television specials entitled "Time Is Money" and "Super DuckTales", with future reruns splitting them into two five-part serials; the third season (aired between 1989–90) consisted of 18 episodes, with it forming an hour-long syndicated block alongside ""; and the fourth season (aired during late 1990) consisted of seven episodes (including three unaired episode meant for the previous season), which was used to form a two-hour long syndicated block called "The Disney Afternoon", consisting of "DuckTales" and three other half-hour cartoons.
Duck family (Disney)
Della made her first animated appearance in "DuckTales" (2017), with her son Dewey discovering she was previously a companion of Scrooge and Donald's in their adventures and starts investigating the cause of her disappearance along with Webby Vanderquack and later Huey and Louie. They subsequently discover that Scrooge has gone to great lengths to conceal information about her. It is eventually revealed shortly before the triplets hatched, Della stole "The Spear of Selene", a spacecraft constructed by Scrooge as a gift, to give it an early test run. However, she got caught in a cosmic storm and was lost in space. Scrooge spent a large portion of his fortune looking for her, but was ultimately unsuccessful. Blaming Scrooge for her disappearance, Donald cut all ties with him and raised Della's children on his own. Della is later shown to be alive, living on the moon in the remains of her crashed spacecraft and unable to contact Earth.