is a broadcasting station affiliated with the Japan News Network (JNN), the Japan Radio Network (JRN) and the National Radio Network (NRN) in Niigata, Niigata. It broadcasts in Niigata Prefecture, Japan, and was established on October 14, 1952. As of 2023, the company is a subsidiary of BSN Media Holdings.
BSN was established as Radio Niigata Co. Ltd. on October 14, 1952. The first test broadcasts were conducted on December 5 and started regular broadcasts on December 24.
The RNK building was affected by the .
On December 21, 1958, in the anticipation for the start of television broadcasts four days later, RNK broadcast , a fictionalization of the suicide memoirs of Tetsutaro Kato in 1944. The play was broadcast on October 31 the same year in Kanto.
On December 25, 1958, RNK TV signed on (JODR-TV, VHF channel 5). In 2006, BSN started digital broadcasting; it ceased analog broadcasting operations on July 24, 2011.