This singing competition has been quietly airing during December for the last two years, spotlighting a capella groups and airing only a handful of episodes. But while The Sing-Off doesn't get as much attention as American Idol or America's Got Talent or the forthcoming X Factor, it really is one of the best vocal-adrenaline-filled shows on television. If you haven't been watching, this season is already off to a great start -- and here's why it's worth checking out:

So it didn't get off to a great start, but after checking out two more episodes, "The Target" (aka Ep. 2 which airs Friday) and "Gray Hour" (aka Ep. 4 which airs March 6), I'm sort of optimistic... at least cautiously. It is from the mind of Joss Whedon, which means due to my undying fandom that I will sit and watch every episode no matter how crappy... though to be fair, none of the episodes of Dollhouse I've seen are really that terrible, it just occasionally dips into the procedural realm, or makes things utterly perplexing. Read on for some reasons I'll be watching (not really too spoilery, just some big highlights).

I know a lot of you out there have given up on Heroes, and frankly I can't blame you. Last season was a horrible shadow of its former self, and this fall's "Villains" arc -- well, the less said about that the better. But this fourth volume, aka "Fugitives," is a marked improvement. Now I'm not going to say it is perfect, as I still have some complaints from my list of things that were wrong with the show, but it is moving in the right direction and shockingly, I'm actually looking forward to episodes again. So while I haven't seen tonight's ep yet, I feel somewhat confident in advising you Heroes deserters to come back for a second look. Because if it actually gets back to its first season glory by the end of this year (which it seems like it is at least attempting to do) you are going to be kicking yourself for not hopping back in sooner.

NBC is going to the White House.