I have a couple of these little battery operated clocks that pick up the time signal from some atomic clock out west, that broadcasts a radio signal that covers the entire us. They are alway right in sync with each other and I trust that they are receiving the atomic clock radio signal.
I have one on my coffee table, and voom is often showing a different time than the atomic clock does. Voom was over 3 minutes of synch. Voom was showing 3 minutes to the hour, while the atomic clock was showing on the hour, and the tv show for the next hour was starting so the tv station obviously agreed that it was on the hour mark. This is going to be painful when the dvr comes along. Why can't all clocks in all devices pick up this atomic clock radio signal and all be in synch?! They should have battery backups too, so they don't blink when the power goes out and comes back on.
I sure hope voom puts an atomic clock radio signal receiver in their DVR to keep synched to a good time source.
