The Voice, 8 p.m., NBC
The 12 remaining singers take to the stage in the live episodes starting tonight, hoping to attract the viewer votes from the American people, those great discerners of talent. Keep an eye on Sisaundra Lewis from Polk County, one of the competition's top singers and likely to go far.
SEASON PREMIERE Rewrapped, 8 p.m., Food
There are so many exciting things about this new Food Network show, where to even start? 1. It's a spinoff of Unwrapped, one of the network's all-time great shows because it investigated things like "the secrets behind bubblegum" and "How are Twinkies made?" 2. It involves chefs re-creating iconic snack foods like Hostess cupcakes, nom. 3. It brings back Unwrapped host and general cheery delight Marc Summers as head judge. 4. FORMER 'N SYNC MEMBER JOEY FATONE IS THE HOST.
Nashville, 10 p.m., ABC
In this new special, Nashville: On the Record, cast members perform songs from the show and the songs' writers share the process of bringing their work to television. So, basically all of the best parts of Nashville (the music and stars like Hayden Panettiere, Charles Esten and Clare Bowen) minus all the silly parts (the melodramatic plot).
SERIES PREMIERE Bad Teacher, 9:30 p.m., CBS
Not sure anyone was clamoring for a sitcom inspired by Cameron Diaz's 2011 film about an inappropriate teacher, but here it is all the same. At least Bad Teacher the TV show is a showcase for the very charming Ari Graynor as Meredith, a former trophy wife who gets herself hired as a middle school teacher despite a total lack of qualifications.
SERIES PREMIERE Black Box, 10 p.m., ABC
The mysteriously appealing Kelly Reilly (Flight) stars as a world-famous neuroscientist with a mental illness in this new drama. Bonus points for making such a complicated main character a woman! As the bipolar Dr. Catherine Black, she treats patients at the state-of-the-art medical institution known as the Cube, while struggling with her own demons, natch.
Whose Line Is It Anyway?, 8 p.m., CW
Fifteen-year-old actor Nolan Gould from Modern Family joins Wayne Brady, Colin Mochrie and the gang for a series of improv games prompted by audience suggestions. And lest you think the teen doesn't have a chance competing against such venerable comedy pros, keep in mind that Gould is a mini-genius of sorts, with a Mensa-level IQ and a high school degree he got at the age of 13. Whose line is it NOW, Wayne Brady?!
Orphan Black, 9 p.m., BBC America
Fill the Scandal-sized hole in your life with this show now in its second season, which has just as many crazy twists but 100 percent less presidential affairs.