Jim Henson was an entertainer.
Jim Henson . In 1976 , after scrapping plans for a Broadway show , he produced The Muppet Show . Rowlf the Dog is a Muppet character , a scruffy brown dog of indeterminate breed , though part Corgi , with a rounded black nose and long floppy ears . The Muppet Show is a family-oriented comedy-variety television series that was produced by puppeteer Jim Henson and features The Muppets .