:3 or Academy Ratio is used in SD and in regular television sets, while 16:9 or Widescreen May be the global standard format of HDTV.
DVCPRO stands for Digital Video Cassette Professional, produced by Panasonic especially for Electronic News Gathering. It has a track in comparison to DVCAM and uses a different form of tape.
Modern and connected just tells you the way the picture is refreshed on screen. Progressive is better to understand, one frame uses the other, that is it! But with interlaced the frame is available in parts. Imagine the cathode-ray scanning the display line by line. In progressive, the lines are done sequentially without skipping. It's not a large amount of hard work but a Russian inventor discovered a means to skip the odd and even lines without much loss in quality hence reducing the bandwidth to half. The problem obviously is the flickering you see on your standard television. Proceed, look carefully at your TV screens and you'll notice two bands. This is how interlacing work.
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