Looking for advice on replacement uhf box, mine has just failed after 2 years and 7 months.
Seems they only last about 3 years, so will be interesting to see what happens to tv's with built-in decoders.
I got one of the first Zinwell zmt-620hd boxes, (cost $480 then) and it has performed well until now, when it just suddenly stopped while running.
Its not the power supply or the integrated micro as the remote can still turn the led on and off, but there is absolutely no output from any of the outllets. So most likely a chip problem which pretty much means irrepairable!