I thought you just had to plug the 2016 roku streaming stick into your tv, and that's all there was to it, but I think it has to also use a usb cable that is supposed to also connect to your tv and to the stick itself. My tv does not have a usb port. It's a 2009 tv. So what would I need in order to make the stick work? The Roku website just shows people putting the stick into the HDMI port...taking it with them on trips and stuff...they don't show or tell that you have to have a usb connection too. I don't get it...help?