I bought two Avov TV Online Version 2 from kijiji last week and one died next day. Only Avov logo come up when I turned it on and nothing after that, reset the box but no luck. The person I bought it from is not picking up the phone anymore. Another one is working but the picture quality is very dull as compare to MAG 254.
I prefer MAG over AVOV with my experience.
It's still under warranty. You can open a ticket at http://help.avov.tv and we can have that device replaced for you.