The is a unit of the NHK that oversees terrestrial broadcasting in Okayama Prefecture.

History JOKK started broadcasting on February 1, 1931, JOKB followed on April 1, 1964. FM test broadcasts (JOKK-FMX) began on April 1, 1964, relaying stereo programming from Osaka.NHK Yearbook 1965, p.228

JOKK-TV started broadcasting on December 23, 1957, JOKB-TV on June 29, 1963. The first color broadcasts were held on October 1, 1964, on JOKK, JOPK followed on March 20, 1966.NHK Yearbook 1966, p.50 Color film arrived to the local news unit during 1970.NHK Yearbook 1971, pp.240, 371 In 1976, JOPK-FM converted to stereo,NHK Yearbook 1977, p.184 and on March 16, 1981, the NHK FM microwave relay network reached Okayama, ending dependence on Osaka.NHK Yearbook 1981, pp.42, 215

On June 4, 1983, JOPK-TV converted to stereo,NHK Yearbook 1984, p.86 JOPP-TV followed on March 21, 1991.NHK Yearbook 1991, p.284 It moved to its current building in 2005, near Okayama Station.

On March 1, 2021, an NHK Radio 1 FM relay station from Takahashi began broadcasting.

NHK+ added local programming on May 22, 2023.Expanding local news distribution with NHK Plus

Programming As of fiscal 2025: News bulletin on weekdays (12:15-12:20pm) Mogitate! (weekdays 6:15-7pm) Mogitate! 645 (6:45-7pm, shared with Matsue, Tottori produces the Saturday edition and Matsue the Sunday edition) Mogitate! 845 (weeknights 8:45-7pm, replaced by regional news service on holidays at 8:55pm from Hiroshima) @okayama (irregular Fridays 7:30-7:55pm, repeated the following Saturday at 7:30-7:55am, also shown on delay in Hiroshima) Thinking Okayama (occasional; can sometimes air on NHK Educational TV) News bulletins on NHK Radio 1 and NHK FM: 12:15-12:20pm (NHK Radio 1 only), 1:55-2pm and 6:50-7pm

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