nuBSG could still sell as a series. A much more positive and "corny" spin on the same material could also sell as a series.
Keep in mind that TV is all niche audience now - even American Idol
is watched only by a small percentage of the overall population. If you're only talking about appealing to 2% of the population, you can target some very specialized tastes.
Which is great, since the most interesting shows are the ones that almost everyone hates.