Like it or not this all started when Sesame Street aired in 1969. The format to have brief, entertaining segments to keep children focused with the end goal of education has ultimately changed the format of modern broadcast. Those children are now adults and they have become accustomed to the short segment format. While there were variety shows that preceded Sesame Street (Ed Sullivan, 1948; Laugh In, 1968; Mr. Rogers, 1968; and Hee Haw, 1969 to name a few) they did not shape and mold a generation the way Sesame Street did. Examples: most notably Saturday Night Live, newscasts, talkshows and the list goes on.