Each era of Saturday Night Live has its mega-stars, the ones whose sketch-comedy contributions linger long after those weekly, wistful goodbye segments and that final saxophone blow. There are, of course, those legendary 1975 originals, the Not Ready For Prime-Time Players like John Belushi, Jane Curtin, Chevy Chase, and Gilda Radner. There’s the eighties domination of Eddie Murphy—a bright spot in a turbulent time for the show, which saw both the exit and return of creator Lorne Michaels—as