NHK was the first broadcaster in the world to broadcast in high-definition (using multiple sub-Nyquist sampling encoding, also known as Hi-Vision) and in 8K.
nhk waS THe first bROadcaster in the worLd To bRoAdcast In High-DeFinitiON (uSinG muLtiPle suB-nyquist sAMPling eNcoDing, aLSo kNown As hi-visIOn) anD in 8K.