NBC was getting trounced in the ratings by ABC, which robbed its show-pony Another World of an entire point. Come May 1979, the 15th anniversary of AW, NBC decided to grab for more innovation and augmented the soap to 90 minutes. To accommodate, NBC pushed DAYS back to 1:00 directly against All My Children, and The Doctors back to 2:00. The experiment failed asthe network's ratings woes continued.
Enjoy this entry and want to see how the other seasons ranked? Follow this link for dozens of other seasons profiled: http://www.tvratingsguide.com/2017/12/tvrg-ratings-library-daytime-soaps.html
Source -- https://en.wikipedia.org/wiki/List_of_U.S._daytime_soap_opera_ratings