PUSHING LIMITS. PUSHING BUTTONS. The one for fun: Peabody Award-winning debut season!Four score and seven years ago.sorry, wrong address. The Water Tower c/o Warner Bros. Studio: That's the address, the place where studio honchos try to contain Yakko, Wakko and Dot. And fortunately, cannot. Animaniacs are on the loose, running rampant at the studio (and `round the globe), taking the Warner tradition of anything-goes animation and going further. Who helos Beethoven, Einstein and Lincoln in their brain-locked hours of need? Who unleashes a steady stream of film sendups, cultural spoofs and gags? Who puts the bop in the bop-shoo-bop? Well, two out of the three isn't bad, and making things even better in Season 1 are friends who are fiendish (Pink and the Brain), feathered (the Good Feathers), furred (Rita and Runt) and frazzled (Slappy the Squirrel). Grab your remotes, maniacs. And Helloooo, Nurse!