What to Watch on Tuesday: A birthday bash and another debate

NC Gubernatorial Debate (7pm) - The second gubernatorial debate will air live on UNC-TV, WRAL, WTVD and WNCN (NBC-17) tonight. News 14 Carolina will broadcast the debate on delay at 8 p.m.

Hart of Dixie (8pm, CW) - Zoe discovers an error about herself in her alumni magazine, so she invites the reporter to town to set the record straight.

Raising Hope (8pm, Fox) - The Chances' plot to spring Maw Maw from a nursing home hits a snag when Virginia begins to wonder if she'll receive better care there than at home.

Ben and Kate (8:30pm, Fox) - Ben (Nat Faxon, left) throws a party to celebrate Kate's 21st birthday and invites her high-school friend Molly to the bash. Kate (Dakota Johnson, left) is only 21. That explains a lot.

Presidential Debate (9pm) - The second debate between President Barack Obama and former Massachusettes governor Mitt Romney airs on ABC, CBS, NBC, UNC-TV, C-SPAN, Fox, Fox News, CNN and MSNBC.

Emily Owens, M.D. (9pm, CW) - In this new CW drama, Emily Owens, an awkward first-year intern at Denver Memorial Hospital, tries to balance work with romance. Tonight, Emily (Mamie Gummer) begins her internship and discovers her old high school nemesis working there, as well as a guy she had a crush on in high school. Adrienne reviews.

Sons of Anarchy (10pm, FX) - Jax presents a dangerous proposal to the club.

Covert Affairs (10pm, USA) - Auggie, Joan and Arthur call on an old friend to help free Annie from prison in Russia.

Flipping Out (10pm, Bravo) - Jeff and Zoila clash over her work responsibilities, so much so that Jeff considers firing her. Elsewhere, Jeff's client suspects her house is haunted, so Jeff spends a night there to prove her wrong.