Good luck with that Sony.  If Sony's built-in Internet apps are like their Blu-ray players, then you might as well either buy a Roku box or upgrade your UV Internet service to 18GB.  You can check some other forums and you'll see the Sony 570-590 players making people very unhappy.  You see, your Netflix streams go through the mfr's servers (I can't say why it's that way, although it may have to do with the devices not being web browsers and real computers.)  In any case, your stream is only as good as the mfr's servers.  If they get too busy or make your Netflix stream subordinate to their own services, as Sony seems to do, then you have a problem.

My experience.  Supposedly, you need only 2.5Mbps for SD streaming and 6Mbps for HD streaming.  With Sony, though, you need 6Mbps for SD and 12-18Mbps for HD.  Roku is excellent and would be my first recommendation, so if your Sony built-in apps leave you "Loading..." repeatedly, you can invest $79 in the wireless 1080p Roku and solve the problem.  Vizio built-in apps are very good, although with occasional "blink outs" at any Internet speed.

Of course, this may all be a moot point as of May 2.  Check your email for notices from AT&T, then see the Internet Caps thread under Uverse Internet.  The times, they are a-changin'.