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 Muppet Show the Muppets: Rocky Mountain Holiday"), while Dudley Moore reappeared in the special, "The Muppets Go to the Movies". Additionally, several guest stars from the series had cameos in one of the first three Muppet theatrical films. Originally, the producers had to call on their personal contacts to appeal to them to appear, especially considering that doing so meant an overseas trip to Britain to do so. However, the situation changed when the renowned ballet dancer Rudolph Nureyev offered to appear; his performance on this unusual TV program produced so much favourable publicity that the series became one of the most