WHET launched in 1975, as an NBC affiliate for Heston, Minnesota. The station was unpopular, however, due to being on UHF instead of VHF (similar to issues that plagued the early days of the FOX network in the late-80s).
After its parent company Heston Television Corporation went bankrupt, the station was donated to Heston Public Broadcasting, and is now run as a member-supported PBS station.