Ubuntu MATE, the latest member of the Ubuntu family, has been spotted running on the MK808B Plus Quad-Core mini TV box device. The device runs with Android 4.4 by default, but a third party developer has tweaked it to run Ubuntu.
The below video shows the user installing Ubuntu MATE 15.04 on MK808B and after reboot, the system loads the Mate system.
Somehow related: Ubuntu MATE 15.10 Wily Werewolf will allow the users to choose the default software center between the Ubuntu Software Center and App Grid.