KUSM signed on for the first time on October 1, 1984, making Montana the last state with an educational station within its borders, 14 years after Mississippi became the last state east of the Mississippi River with its own PBS station. The transmitter was donated by Montana broadcasting pioneer Joe Sample. MSU didn't have enough funding at the time to support a public television station, and the Gallatin Valley didn't have nearly enough people at the time for viewer-supported public television. Station engineers switched to and from the signal of KUED in Salt Lake City for most PBS programming until 1987, giving MSU time to train its staff and build local financial support.