> - Netflix will only send you "high quality" (over 720p) streams on certain browsers (IE on windows, Safari on OSX, ???? on Linux) that support Encrypted Media Extensions.
It's not only netflix that does this, all of the streaming services do (though some of them limit to 1080p instead of 720p).
Such an utterly pointless anti-piracy measure... every show ends up on torrents in 4k regardless, only serves to punish those actually paying for the service.