I also bought a stick and it came today. I am having lots of trouble getting the HDMI extender for free from ROKU. I even tried going to device settings and finding the serial number. In addition, the number on box does not work either. It is a new stick. I don't know why I am having trouble getting a HDMI extender.
As was stated by @makaiguy, there is nothing special about the official Roku HDMI extender; it’s only 3-4 inches or so. You’re better off buying an extender from Best Buy, Amazon or Walmart that is way longer than the Roku extender. In fact, I’d recommend a compact Roku box over a Stick any day.
~ Jordan
