 At the beginning of the show, during the opening credits and theme  song, there is always something different displayed in text at the  bottom of the screen. At the very end of the theme song, there is  always something different displayed on the screen before the ship  crashes into it. This is reminiscent of Matt Groening (qv)s cult  phenomenon of _"Simpsons, The" (1989)_ (qv), as there are three  distinctly varying elements in the intro music as well. (Barts  chalkboard writings, the method of the family sitting down on the  couch and Lisas saxophone solo as she leaves band practice.)