As I reported earlier in this thread.
Locally owned ISP, Cable modem: 30 dn/5 up
Devices running Netflix Apps:
ATV 3 (Set to 1080p Native to TV) Wired, not Wifi, Airport Extreme
ATV 3a (Set to 1080p Native to TV) Wired, not Wifi, Airport Extreme
Roku 2 HD (Set to 1080p Native to TV) Wired, not Wifi, Airport Extreme
Roku 3 (Set to 1080p Native to TV) Wired, not Wifi, Airport Extreme
Panasonic Smart HDTV - Wireless, Airport Extreme
XBOX One (Set to 1080p Native to TV) Wired, not Wifi, Airport Extreme
iPad Air - Wireless, Airport Extreme
Only one of these is ever tested at a time, in case you ask. We do have the upgraded "Multi-Stream" plan with Netflix as well (Yes, I thought it would help).
All with the exact same "HD" quality streaming issue (crappy, in technical terms) on all devices during Prime Time viewing.
All of them.
Stream HD Amazon Prime content Amazon on Roku 2 or 3? ATV or Roku HBO-Go, PBS, and WatchESPN content?
Pure 1080p Perfection.
It's become a sad joke in our home, we start content in the Netflix "Super HD", then after 2 minutes head to Roku for Amazon Prime or ATV HBO-Go.
This is a challenge with NetFlix, not Apple. Again, I suspect the massive demand for streaming content to users with shiny new Holiday gifted tablets, ATVs, Rokus, [enter game console of choice], SmartTV, Blueray, the list goes on...