Since its premiere, the show's beloved characters have experienced subtle design changes and undergone some pretty extreme makeovers. Here's how the most popular "Sesame Street" muppets have ...

Cast members of the television show, 'Sesame Street,' posing on the set with some of the puppet characters in 1969. Left to right: Will Lee (1908 - 1982), Matt Robinson (1937 - 2002), Bob McGrath ...