There is a big difference between restricting to standard definition and high definition though. Many people now have devices that will show the difference betw

There is a big difference between restricting to standard definition and high definition though. Many people now have devices that will show the difference between low and high definition, not as many have 4K capabilities. In the future these values will go up of course, but the difference between restricting HD users to SD and 4K users to HD is quite different.