According to speedtest.net I have a 58 MBit download and 39 MBit upload. Yet, Netflix is basically unwatchable at around 6PM on weeknights. I literally get a better connection on my parents DSL than with Verizon Fios in Northern VA.
Remember Netflix maxes out at 3MBit/second and use useable at .75MBit/second so I am getting ~1-2% of my theoretical connection speed.