There were four major HDTV systems tested by SMPTE in the late 1970s, and in 1979 an SMPTE study group released A Study of High Definition Television Systems:
There were four major HDTV systems tested by SMPTE in the late 1970s , and in 1979 an SMPTE study group released A Study of High Definition Television Systems :
How many major HDTV systems were tested by SMPTE in the late 70's?
How many major HDTV systems were tested by SMPTE in the late 70 's ?
four
four