Even the Premium 4k streams have surprisingly low bitrates and, occasionally, framerates. I dug out the blu-ray player the other day and was absolutely shocked how good things looked and, even more so, sounded--the audio quality from Netflix (and most streaming services, really) is simply atrocious.

Of course, but you can't expect 100GB movies for 4K HDR from an online provider.

The Sony Bravia Core service isn't far off that to be honest.