KNBN, channel 21, is the NBC affiliate in Rapid City, South Dakota. It is owned by Jim Simpson's Rapid Broadcasting, and is also the sister station to KWBH-LP. KNBN's transmitter is located in Rapid City.

KNBN can also be seen on translators KKRA-LP on UHF channel 24 and K40GS-D on UHF channel 40; both stations are licensed in Rapid City, though K40GS-D mainly serves Lead and the Black Hills region.

History

The station signed on the air on May 14, 2000. Despite transmitting its signal on UHF channel 21, KNBN identifies as NewsCenter1 on-air, an artifact of when the main cable systems in the market carried the station on Channel 1, which is usually used solely to provide a slot for video on demand services, barker channels or electronic program guide services. Currently, KNBN is carried on local cable systems on channel 10, though it retains the NewsCenter1 branding. Before KNBN signed on, NBC was provided via cable from KUSA in Denver- before that, KEVN served as the primary NBC station in the area.

Digital television

Digital channels

The station's digital signal is multiplexed:

ChannelVideoAspectPSIP Short NameProgramming[2]
21.11080i16:9KNBN-NBCMain KNBN programming / NBC
21.2720pKNBN-CWSimulcast of KWBH-LP

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 UHF channel 21.[3][4] Because it was granted an original construction permit after the FCC finalized the DTV allotment plan on April 27, 1997, the station did not receive a companion channel for a digital television station.