In 1983, Groce co-founded "Mountain Stage", a two-hour live music program produced by West Virginia Public Radio and distributed nationally and internationally by NPR and Voice of America's satellite radio service to over 200 stations. He is its host, producer and artistic director. His musical tastes have been instrumental in defining the sound of the show. "Mountain Stage" was the first nationally broadcast radio or television program to feature live performances by Lyle Lovett, Mary Chapin Carpenter, Sheryl Crow, Barenaked Ladies, Alison Krauss, Ani DiFranco, Phish, Counting Crows, Ben Harper, Ryan Adams, Sarah McLachlan, Tori Amos, Ben Harper, Lucinda Williams, David Gray, and The Avett Brothers. The show has also featured musical pioneers such as Bill Monroe, Ralph Stanley, Doc Watson, Pops Staples and Brownie McGhee as well as modern superstars R.E.M., Martina McBride and Norah Jones.