The Muppets to be a vital component of its increasing popularity, providing an "effective and pleasurable viewing" method of presentation for the series' educational curriculum. In the early 1970s, the Muppets continued their presence in television, primarily appearing in "The Land of Gorch" segments during the first season of "Saturday Night Live". As his involvement with "Sesame Street" continued, Henson mused about the possibility of creating a network television series featuring the Muppets; as opposed to "Sesame Street", however, this proposed series would be aimed at a more adult audience and focus largely on sketch comedy. Two pilot specials, "The Muppets Valentine
The Muppets several characters. On September 28, 2005, the United States Postal Service released a "Jim Henson and the Muppets" postage stamp series. The Muppets also appeared on "Dick Clark's New Year's Rockin' Eve" for the 2008 countdown on December 31, 2007. Kermit, Rizzo, and others welcomed in the new year with a series of messages to welcome viewers back from the advertising breaks. After one such segment, with Kermit in Times Square, co-host Ryan Seacrest thanked his pal "Kerms" for the help bringing in '08. Miss Piggy has appeared as a guest on "The Late Late Show with Craig Ferguson" and