OK.. Try this and see if it helps..
From home screen, go top to setting (Gear Icon)->Apps->See all apps, then Scroll down and see if you have "BuzzTV OTA". If you don't, scroll further down and select "Show system apps", and scroll down to find it. Not the "BuzzTV BT350 OTA" one.
So one you find "BuzzTV OTA", select it, and then go down and select "Clear Data". Now get out, and go back to home screen and reboot the box, and see if when you boot it, and go into LiveTV and select the usual menu/settings/check updates as mentioned above, it if helps. If not, send them an email like DU mentioned.