Ellenberg is a 30-year broadcast radio veteran. One of his most noteworthy accomplishments was when he recruited Karen Mills, a fledgling interior designer and corporate refugee from IBM, to host the nation's first interior design radio show. It ran for eight consecutive years and generated 400 hours of original programming. As the executive producer, Ellenberg engineered an exclusive partnership with HGTV to populate the show with their celebrity guests. He branded it Living Large, which landed in the media popularization section of Wikipedia’s interior design listing alongside Martha Stewart Living.