In the 70's to the 90's Hanna-Barbera used to have a logo that was shown at the end of their cartoons that began with a swirling effect that would swirl around and around and then became a white star and I would like to know why Hanna-Barbera came up with it? I used to see that logo and I thought it was cool at the end of Hanna-Barbera cartoons. Why this logo disappeared i'll never know and they should make a new version of it someday