What appears on the display on the supermarket when the cashier passes Meggie?

Yes, me too, but once I saw an episode of the Simpsons in which they promised to reveal it as it were a special thing! The fact is that I lost the second part of the episode, so I don't know whether they really revealed it or it was a fake. So I launched the post in order to know if someone of the most aficionados to the Simpsons had seen that episode too and remembered what did they say. That's it. bye

Thanks for the answer! It is plausible, and perhaps also the right one. They told me not to rate just one response, so let's wait for more. bye