20th Anniversary (1988) Jan. 31: "The Wonder Years" Baby-boom nostalgia hits TV courtesy of Neal Marlens' memories of junior high. April 19: Public Enemy's "It Takes a Nation of Millions to Hold Us Back" One of the greatest hip-hop albums by the greatest hip-hop group from Long Island. July 15: "Die Hard" Bruce Willis goes from TV star to movie star as terrorist-fighting NYPD cop John McClane. Aug. 8: NWA's "Straight Outta Compton" Gangsta rap gets a voice thanks to Dr. Dre, Ice Cube, MC Ren and Eazy-E and such cuts as the title track and " F*** tha Police." Sept. 24: "Don't Worry Be Happy" Bobby McFerrin's goofy, Caribbean-inflected hit is the first a cappella song to hit No. 1. It's appropriated by Republican candidate George H.W. Bush's staff in the presidential campaign (until McFerrin, a Democrat, objected, and the Bushies stopped). Oct. 18: "Roseanne" Their house was a mess. They squabbled with their kids. They never had enough money. Finally, a show about us.'Wonder Years' photo courtesy of Warner Bros.