Readers wept over Erich Segal's No. 1 Love Story, while in theaters, C.C. and Company hitched a ride to the top. The Jackson 5 hit a high note with ''I'll Be There,'' and Marcus Welby, MD buried his TV competition.


Sign up for EW.com's The 25 newsletter!

Stay in the know and get EW.com's top 5 stories, 5 days a week (sent weekday afternoons).