North Carolina wouldn't let a huge second-half deficit stand in the way of an enticing rematch of its 1982 championship game with Georgetown. Down by 16 points early in the second half, the top-seeded Tar Heels suddenly shifted into another gear. Fueled by a big run, they pulled off their biggest rally of the season and beat Southern California 74-64 on Friday night in the East Regional semifinals. (ABC News)