The magnificent block building

According to the Muppet Wiki (http://muppet.wikia.com/wiki/Bein'_Green), this episode contains one of the key moments in "Sesame Street" history: when Jim Henson as Kermit the Frog sings "Bein' Green" for the first time. The tune was written by Joe Raposo, who composed a number of important songs for the show in the early years, such as "Sing" and the opening title song. In the philosophy of the show, it's a short segment--but unlike most of the other surrounding hyperkinetic cartoons, live action skits, and other Muppet hijinks is this low-key quiet piece of just Kermit sitting on a log in the dark singing. This segment is the start of the show (and the Muppets in general!) being regarded as something more than for kids... A number of artists, including Frank Sinatra, would record versions of "Bein' Green." To watch this moment, go to: https://www.youtube.com/watch? v=RIOiwg2iHio&spfreload=10