KNBN is a full service television station in Rapid City, South Dakota, broadcasting on local digital UHF channel 21. Founded in 2000, it is owned ... See more by Rapid Broadcasting Company. KNBN is affiliated with NBC (National Broadcasting Company), airing NBC's primetime shows in the evening. In the morning, the station airs NBC's morning news and information program, with spots for local news and weather; in the afternoon, it airs NBC's soap operas; in the early evening, it shows NBC's national news broadcast and NewsCenter 1. After primetime, it airs its own local newscasts, followed by NBC's late-night programming. KNBN also airs local sports broadcasts.