The first Muppet characters appeared in Sam and Friends, a Washington, D. C. –based show which was broadcast from 1955 to 1961. Kermit the Frog was one of the show's regulars, and thus was one of Henson's first Muppet creations. The characters became a household name after their appearance in the children's television program Sesame Street. Henson was initially reluctant to become involved with Sesame Street because he feared being pigeon-holed as a children's performer, but agreed to work on the show to further his social goals. :5 The characters created for that series are now owned by the Sesame Workshop, the producers of Sesame Street, and are now considered a separate franchise.