I have seen the technical guruji video you are referring to. But I disagree with him completely ...I had been using 1.4 version all this while and felt the difference immediately after I switched to 2.1 version. I found the picture quality has more depth and is more defined in the newer version. While buying the cable I was more focused on quality than price. Infact I was looking for optical HDMI but gave up as 6 ft version was not available.