Glen Campbell wailed into disco country with his ''Southern Nights''; Dr. Wayne Dyer's Your Erroneous Zones was, no mistake, the No. 1 best-seller; Annie Hall was the fave date movie; and on TV, Happy Days was correctamundo.


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).