The fact is the consoles have never been this close
People have always had differences in how to run the consoles and so you get different consoles. The reason the differences matter is that developers squeeze every bit of power from the console by tailoring their game to that console (or not bothering and making crap games)
Microsoft think that every console needs a Kinect and TV stuff, Nintendo think it needs a tablet and not very much power and Sony kept it simple
They all have different philosophies and so we get different consoles
Also, you claim that watching TV is simple, but digital downloads are anything but. By something from iTunes and you are seriously constrained in how you can watch it. You do admittedly still get all the content, though of course Netflix only has some it, since Amazon has the rest... Gaming is more complicated, but let's not pretend the VoD is simple







