Rowlf the Dog was the first Muppet to reach national stardom as a cast member of The Jimmy Dean Show from 1963 to 1966. He later went on to serve as the resident piano player on The Muppet Show, also playing the silly surgeon Dr. Bob on the recurring sketch "Veterinarian's Hospital." Rowlf first appeared in 1962 in a series of Purina Dog Chow commercials. He was paired with Baskerville the Hound in a series of ads which aired in Canada from 1962 to 1963. Rowlf was the first Muppet built by Don S