When I was in college in the early 90’s, there were a few contemporary cartoon TV series that were exorbitantly popular at school: Ren & Stimpy, Beavis & Butthead (mmm-mmm-mmm-heh, fire), and Animaniacs. From the standpoint of the animation quality, these are pale in comparison to some animated series that are on today… but especially with Ren & Stimpy and Animaniacs, I defy people to argue that modern cartoons necessarily improve upon them (Gumball, of course, is quite possibly superior, or at least in the same class). They were ostensibly meant for kids, but were clearly aimed at adults with some things in them that would make an observant adult go “dayum.”
Two of the voice actors for Animaniacs were recently shown videos of modern children being shown Animaniacs, and the results are amusing. Especially the updating of Yakkos singing the nations of the world song: in the quarter century since it was originally written, there have been a number of newly recognized nations. And once again, Rob Paulsen, voice actor of Yakko, nails it.