I have an older Vizio TV (2012 model) in my home office and it has one USB port in it. I recently got rid of cable so I need something to stream on it with and a Roku Streaming Stick is my top pick specifically because of its ability to be powered by USB. Because my TV is ancient by today's standards, I'm not 100% sure if the USB port will power the Roku. I did plug my Apple Watch's USB chord to it and it appears to charge my watch with no problem. Should it be able to the Roku as well if it worked with my watch?