May 14, 2000. News operation KNBN presently broadcasts 16 hours of locally produced newscasts each week (with three hours each weekday and a half-hour each on Saturdays and Sundays). Technical information Subchannels The station's digital signal is multiplexed: Translators Analog-to-digital conversion KNBN shut down its analog signal, over UHF channel 21, on February 1, 2009, and "flash-cut" its digital signal into operation on channel 21. The "flash-cut" was necessary as the station had its original construction permit granted after the FCC finalized the DTV allotment plan on April 27, 1997; as a result, the station did not have a companion channel for a digital signal. See also Channel 1 branded TV stations in the United States Channel 21 digital TV stations in the United States Channel 21 virtual TV stations in the United States References External links NBC network affiliates MyNetworkTV affiliates Television channels and stations established in 2000 2000 establishments in South Dakota NBN