Context: The Nippon Hōsō Kyōkai (NHK, the Japan Broadcasting Corporation) began conducting research to "unlock the fundamental mechanism of video and sound interactions with the five human senses" in 1964, after the Tokyo Olympics. NHK set out to create an HDTV system that ended up scoring much higher in subjective tests than NTSC's previously dubbed "HDTV". This new system, NHK Color, created in 1972, included 1125 lines, a 5:3 aspect ratio and 60 Hz refresh rate. The Society of Motion Picture and Television Engineers (SMPTE), headed by Charles Ginsburg, became the testing and study authority for HDTV technology in the international theater. SMPTE would test HDTV systems from different companies from every conceivable perspective, but the problem of combining the different formats plagued the technology for many years.

Question: What is the Japan Broadcasting Corporation called?
Answer: Nippon Hōsō Kyōkai

Question: What does NHK stand for in Japan?
Answer: Nippon Hōsō Kyōkai

Question: What year was NHK Color created?
Answer: 1972

Question: What was the aspect ratio of the NHK Color?
Answer: 5:3

Question: What organization became the authority on testing and studying international HDTV technology? 
Answer: The Society of Motion Picture and Television Engineers (SMPTE)

Question:  What is the Chinese Broadcasting Corporation called?
Answer: Unanswerable

Question:  What does NHK stand for in China?
Answer: Unanswerable

Question:  What year was NHK Black and White created?
Answer: Unanswerable

Question:  What was the aspect ratio of the NHK black and white?
Answer: Unanswerable

Question: What organization became the authority on testing and studying international SDTV technology?
Answer: Unanswerable