According to Anvar, SyFy's metrics for measuring the success of the show are down to its first-run viewing figures (it's "live" figures when it first airs on SyFy). They also count all DVR recordings, as long as they are viewed within 3 days. Apparently - and SyFy themselves have rather oddly confirmed this (suggesting they're happy to game their own system) - if you do both, it counts as two viewings of the show.
Fans of the show paid to have this banner flown over Amazon HQ for four hours yesterday.
The window for saving the show is unclear: there are six episodes of Season 3 left to air before the season ends in June, but some reports have suggested that Alcon won't be willing to pay for storage for the sets and props beyond a few more weeks, so that if the show isn't picked up soon they'll strike the (very expensive) sets and that will make the cost of remounting the show much greater.