 Carson influenced the scheduling of reruns (which typically aired under the title "The Best of Carson") in the mid-1970s and, in 1980, the length of each evening's broadcast, by threatening NBC with, in the first case, moving to another network, and in the latter, retiring altogether.In order to work fewer days each week, Carson began to petition network executives in 1974 that reruns on the weekends be discontinued, in favor of showing them on one or more nights during the week.In response to his demands, NBC created a new comedy/variety series to feed to affiliates on Saturday nights that debuted in October 1975, "Saturday Night Live".