I posted this in another thread the other day, but I'll post it here again for the sake of completion.
Netflix claim 5.1 Audio and hopefully the above shows how bogus those claims can be.
Likewise they claim 1080p streaming and also claim that they will soon be moving to 4K Video Streaming!!! which THEY claim will require a constant 15Mbps connection.
This 4k claim is quite ironic when they almost never deliver the bitrates they claim are necessary for even 1080p i.e. 4,500kbps... most people top out at 3,000kbps... or many times lower depending on your ISP and the time of day.
To see what you're actually achieving with Netflix, search for the short "Example Short 23.976" on Netflix thru your player and play it. As you will see, the Bit Rate and the Resolution are Dynamically encoded in the playback screen and tell you what you're watching as the video progresses (and the Bitrate / Res might change).
Quite educational as to what you're ACTUALLY watching.
P.S. When looking at the above Netflix rates, it's worth bearing in mind that Blurays achieve varying rates between 15Mbps to 45Mbps depending on the scene and the Blu-ray Disc.
If you believe that you're missing nothing in the approx 25,000kbps difference between Netflix (on a good day) and Bluray then by all means...