KISD AM 1230 was a powerhouse top 40 radio station in Sioux Falls from 1966-1977 with enormous local and regional influence, bringing some of the biggest national and international acts to the area. In 1966 the Starr Group from New York bought the license for KISD. Partners included Peter and Michael Starr plus author and commentator William F. Buckley. In September of that year the format was changed to twenty four hour rock and roll and KISD quickly became the number one station in Sioux Falls.
The Starr Group hired Ray Ford from Phoenix to be the station program director. They brought in nationally known DJs like Bill Proctor, Tom Rambler, and Brian Cummings along with local announcers Jerry Dahmen, Michael Goodroad, and Ken Mills. Cummings and Mills have been inducted into the SDRRMA "Hall of Fame".
KISD promoted major concerts at the Sioux Falls Arena called "Summer Happenings". Artists included Three Dog Night, Gene Pitney, Lovin Spoonful, Easybeats, Turtles, The Mob, The Flippers, Roarin' Red Dogs, Crow, and the Rumbles. These shows drew thousands of people and created a new era of rock and roll for area music lovers.
In 1970 the station was sold to Stan Deck, a broadcaster from Dickinson, ND. They featured a new wave of DJs including Johnny Knight, Chris Allen, Bill Richards, Robert W. Walker, Don Jacobs, and Joe Blood. Deck in turn sold the station to Robert Ingstad in 1977 and the call letters were changed to KKRC, thus ending an eleven year run of memorable music and notable DJs. KISD was a big part of rock and roll history in South Dakota.