WDSM [SEP] licensed to broadcast to
WDSM
WDSM (710 AM) is a talk radio station in Duluth, Minnesota, (licensed to Superior, Wisconsin). WDSM was created in 1938 as an affiliate of the Mutual Broadcasting System. The requested call letters were W Duluth Superior Mutual. WDSM provided Mutual programming throughout the Iron Range of Northern Minnesota as well as the Duluth-Superior market. WDSM switched network affiliations with NBC powerhouse WEBC in 1955. This was a direct result of WDSM's commitment to television and its founding of WDSM Channel 6 on March
newspapers and broadcasting outlets. The FCC considered the Knight-Ridder merger to be an ownership change, and as a result, the WDSM stations lost their grandfathered protection. The television station was spun off to RJR Communications, a locally based group, in the fall of that year. On December 6, the call letters were changed to the current "KBJR-TV". Channel 6 is one of the few stations in the country whose call sign begins with "K" despite being licensed to a city east of the