Henson’s creations were soon popping up in segments on other TV shows, including “Today” and late-night programs. From ‘Sesame Street’ to ‘SNL’As Rowlf and Kermit made the rounds on variety shows, journalist Joan Ganz Cooney and psychologist Lloyd Morrisett were creating a new educational program. When “Sesame Street” became a hit, Henson worried that his Muppets would be typecast as children’s entertainment. That company ran into financial trouble soon after, then sold the Sesame Street characters to Sesame Workshop for $180 million in late 2000. Disney continued to produce Muppet content, including “The Muppet’s Wizard of Oz” in 2005.