The Ugoos UM3 is a small box that you can plug into your TV to run Android apps. But unlike most devices that fit that description, this one can also run Ubuntu Linux.
That means you could use it to stream videos from YouTube or Netflix, play music from Pandora or Spotify, or play Android games. Then you could reboot the device and switch operating systems to run full desktop apps including LibreOffice and Firefox.
Ugoos offers a larger model called the UT3S which sells for about $179. But the Ugoos UM3 costs about $50 less.