Who Do You Think You Are (8pm, NBC) - Marisa Tomei (left) explores her roots and focuses on a possible family murder. Her quest takes her to Italy to uncover the truth about the alleged slaying of her great-grandfather.

Shark Tank (8pm, ABC) - A new guest shark tonight: QVC personality and inventor Lori Greiner, who holds over 110 patents. Before the panel tonight: a towel designed for modesty while changing out of a bathing suit, a cake mix for dogs, and an update on a class-notes sharing site for college students.

Nikita (8pm, CW) - Nikita tries to save her mentor from being killed by Percy in his attempt to take control of Division. Meanwhile, Amanda tells Alex it is time for her to take back Zetrov.

Grimm (9pm, NBC) - A trail of homicides puts Nick and Hank in pursuit of a deadly heartbreaker.

Blue Bloods (10pm, CBS) - A wealthy woman dies of an apparent heart attack, but her eccentric daughter claims she received a message from God that the death was actually a murder.

Confessions: Animal Hoarding (10pm, Animal Planet) - Featured tonight, a North Carolina woman with 30+ cats and a recidivist hoarder (not from North Carolina!) who secretly keeps dogs in a junkyard. Read more about the North Carolina case, in which the Wake County SPCA assisted in the removal and placement of the animals involved. Cats Winslow and Winny from this show still need a home!

Michael Feinstein's American Songbook: Lost and Found (10pm, UNC-TV) - Feinstein sets out to authenticate a previously unknown song by one of the giants of American popular music. He also convinces Broadway composer Jerry Herman to share one of his previously unknown tunes. Tony Award-winner Christine Ebersole also appears.

The Vampire Diaries (8pm, CW) - Elena attends a formal ball at Klaus' newly renovated mansion and learns of a horrifying plan that could lead to numerous deaths.

30 Rock (8pm, NBC) - In a one-hour dose of "30 Rock," Liz and Criss (James Marsden, left) decide to celebrate Valentine's Day but must first purchase a new dining table. Also, Jack spends time with his mother-in-law, Jenna anticipates her first live performance on "America's Kidz Got Singing," and Lutz seeks a special person to share the holiday with.

Grey's Anatomy (9pm, ABC) - It's also Valentine's Day over on "Grey's," where Lexie and Mark are babysitting for both Meredith and Derek and Callie and Arizona. Also, the ER fills with sick and/or broken romantics.

The Finder (9pm, Fox) - Walter helps an amateur magician look for his assistant, who vanished after a disappearing act, but the trail also leads to a counterfeit operation.

The Mentalist (10pm, CBS) - Jane hurries to prove a murder suspect is not guilty while the case is deliberated by a jury. Also, Cho realizes his informant may have crossed a line while trying to assist him.

Nature: Raccoon Nation (8pm, UNC-TV) - A look at urban raccoons, which are commonplace in big cities like Toronto, New York and Chicago. Night-vision cameras and radio collars provide a glimpse of the raccoon lifestyle, and there's also a look at the damage the critters have done in Japan, where they were imported as pets during the 1970s. Includes comments from a biologist who believes city life is making raccoons even smarter (they will rule us one day!). I know they can be destructive, but man, how adorable are they???

Person to Person (8pm, CBS) - In this revival of CBS's iconic primetime interview show, Charlie Rose and Lara Logan, both of the new "CBS This Morning" (which is very good, by the way), interview newsmakers in their homes and workplaces. Tonight's interviews are with George Clooney, Warren Buffett, and Jon Bon Jovi.

American Idol (8pm, Fox) - The Hollywood Round begins. Finally.

Modern Family (9pm, ABC) - Phil's preoccupation with a business opportunity blinds him to his new partner's inappropriate behavior around Claire.

Duke at North Carolina (9pm, WRAL) - You may not have heard anything about this, but it's happening. If you miss your normal CBS shows, WRAL will air "Criminal Minds" at 2 a.m. and "CSI: NY" at 3 a.m., which is a little different from their normal rebroadcast schedule. 

Revenge (10pm, ABC) - Birdies tell me some pivotal stuff goes down tonight, so pay attention. It may have something to do with the visit from Conrad's father, played by William Devane. Or it may not.

L&O: SVU (10pm, NBC) - Harry Connick Jr. is back. That is all.

NCIS (8pm, CBS) - In the show's 200th episode, Gibbs (Mark Harmon) questions choices he's made when he stares down the barrel of a gun at a local diner.

The River (9pm, ABC) - In this two-hour series premiere, a TV explorer goes missing in the Amazon and his wife, who believes he's still alive, sets out with her son (Joe Anderson, right) and a documentary film crew to find him. It has a creepy "Paranormal Activity" vibe. Read my full review of "The River" premiere.

New Girl (9pm, Fox) - Jess goes against Nick's wishes when she makes it her mission to befriend the loft's landlord, who is notoriously cranky. But in doing so, Jess inadvertently jeopardizes their living situation.

Raising Hope (9:30pm, Fox) - Burt, stressed out during tax season, blurts out a hurtful insult about Virginia's career, so she starts a new business as a tarot-card reader.

Unforgettable (10pm, CBS) - A serial killer with knowledge of Carrie's memory skills taunts her and the police department as his list of victims grows. Emmy Award-winning actress Jane Curtin ("Saturday Night Live," "3rd Rock from the Sun") joins the cast tonight as a high-level inspector in the NYPD who until recently was running the Medical Examiner's office in Manhattan.

Parenthood (10pm, NBC) - Mark and Sarah consider having a baby, and Amber lands a promotion she worries she's not qualified for (do not trust that politician, Amber!!!).

Southland (10pm, TNT) - Sammy cares for a dog after accidentally shooting it and Lydia and Ruben investigate the murder of a good Samaritan. Also, Ben and Lydia both brave monumental life changes.

Justified (10pm, FX) - A daring prison escape puts Raylan on the trail of two old foes, while Boyd confronts a traitor in his inner circle.

There's even more good stuff than normal happening at 10 p.m. now, so don't forget the DVR time-shifting strategies we discussed before.

The Voice (8pm, NBC) - 'The Voice' follows their post-Super Bowl debut with a two-hour episode containing more blind auditions. Coaches Cee Lo Green, Christina Aguilera, Adam Levine and Blake Shelton at left.

House (8pm, Fox) - Following a violent incident involving a patient, House and the team are placed under review by the neurology chief.

The Bachelor (8pm, ABC) - The remaining women (both North Carolina women are still in the mix, but something tells me that changes tonight!) visit Panama, and hopefully, Emily from Chapel Hill can stop talking about Courtney for five seconds.

Alcatraz (9pm, Fox) - We've only seen prisoners up to now, but tonight an old guard resurfaces and encounters an old acquaintance.

Hart of Dixie (9pm, CW) - Tonight's Valentine's dance episode features a performance by Raleigh native Tift Merritt.

Smash (10pm, NBC) - This much-hyped debut of NBC's (much better!) answer to "Glee" follows a group of professional adult people staging a Broadway show. In tonight's debut, a writing duo come up with the idea to base a musical on Marilyn Monroe, and an experienced chorus girl competes against a promising newcomer. It has a great cast, which includes Debra Messing, Angelica Huston and Katharine McPhee. Here's my full review.

Lost Girl (10pm, Syfy) - Bo protects a human woman after a fury tries to hire Bo to kill her husband's mistress.

Super Bowl XLVI (6pm, NBC) - As if you didn't know: New England Patriots vs. the New York Giants in Indianapolis. Madonna performs at halftime. Someone convince me to pull for their team and I will. If football isn't your thing, and you've already seen all the great commercials leaked online, there's always the Puppy Bowl on Animal Planet.

60 Minutes Presents: Three Remarkable Women (8pm, CBS) - Morley Safer profiles Meryl Streep, Anna Wintour, and Dolly Parton.

Downton Abbey (9pm, UNC-TV) - In episode 5, the household prepares for the war's end and the family looks forward to having a private home again -- unless cousin Isobel (Penelope Wilton pictured with Elizabeth McGovern) has her way. Also, in a remarkably "soapy" twist, a wounded officer makes a startling claim that could alter the Downton succession plan.

Luck (9pm, HBO) - In the second episode of the series (which has already been renewed for another season by HBO), Ace (Dustin Hoffman) meets with his parole officer and starts to line up potential investors as a public face for his next big venture. Also, Walter finds a seasoned jockey for his prized thoroughbred, much to Rosie's dismay.

Shameless (9pm, Showtime) - When Eddie Jackson's body turns up, Frank thinks he should be in line to claim his pension and insurance benefits.

The Voice (10:30pm-ish, NBC) - Season 2 debuts after all the Super Bowl hoopla, so the 10:30pm start time is fluid. Tonight is the first night of blind auditions, during which coaches Christina Aguilera, Adam Levine, Cee Lo Green and Blake Shelton begin choosing 12 vocalists for their respective teams.

My Cat From Hell (8pm, Animal Planet) - Jackson Galaxy helps a woman whose cat attacks her roommate every chance it gets. I say, maybe the cat knows something she doesn't know. Also, some newlyweds move into a new house and then their cats suddenly no longer get along.

NFL Honors (9pm, NBC) - In advance of this weekend's Super Bowl, the NFL salutes its top players and plays in Indianapolis. Host Alec Baldwin is joined by celebrities and NFL stars, and awards are presented to NFL MVP, Coach of the Year, and the Walter Payton Man of the Year.

Pit Boss (9pm, Animal Planet) - The rescue of a severely abused pit bull turns dangerous for Shorty and Sebastian when the dog is frightened.

Saturday Night Live (11:29pm, NBC) - Channing Tatum hosts. Despite that fact, I will tune in for the musical guest Bon Iver.

Austin City Limits (Midnight, UNC-TV) - Wilco performs from their 2011 album "The Whole Love."

Who Do You Think You Are (8pm, NBC) - Season 3 of this genealogical reality show kicks off with Martin Sheen delving into his family's history. Sheen travels to Ireland and Spain, and discovers his uncle was also devoted to political activism and that another relative had been allegedly imprisoned in Spain.

Seizing Justice: The Greensboro 4 (8pm, Smithsonian Channel) - A repeat of the Smithsonian Channel documentary examing the sit-ins at the Greensboro Woolworth's lunch counter in 1960. More info here.

Supernatural (9pm, CW) - Sam and Dean investigate when bodies branded with a mysterious symbol turn up with their feet and hands severed.

Grimm (9pm, NBC) - Nick finds a black market that supplies the creature world with human organs. Also, he and Juliette befriend a pair of homeless siblings whose friends have vanished.

Blue Bloods (10pm, CBS) -  Danny and his family get caught in a crossfire after Danny's car hits a man fleeing from a gunman and Danny returns fire. Meanwhile, Frank deals with the impending loss of a friend he worked with at Ground Zero.

American Idol (8pm, Fox) - Auditions continue, but also, Madonna previews her new music video featuring Nicki Minaj and M.I.A.

Parks and Recreation (8:30pm, NBC) - Leslie makes it her mission to find Ann a date for Valentine's Day. Meanwhile, Ben turns to Ron for help in figuring out Leslie's elaborate Valentine scavengar hunt, and Chris is troubled by the status of his love life.

Grey's Anatomy (9pm, ABC) - In an alternate reality episode, Meredith dreams about "what ifs" in a series of flashbacks: What if her mother didn't get Alzheimers and Meredith was a happy, well-adjusted person? What if she hadn't met Derek in a bar and he stayed married to Addison? What if Alex was a geek? What if ...  (Hey, at least they aren't singing in this one!).

The Union (9pm, HBO) - Cameron Crowe's tribute to the collaboration between Elton John and Leon Russell, who was John's mentor in the 1970s, as they reunite nearly 40 years later to record their 2010 album. 

Daisy Bates: First Lady of Arkansas (10pm, UNC-EX) - An Independent Lens documentary looking at the life of Daisy Bates, who led the integration of public schools in Little Rock, Arkansas, in 1957. Read more about the "Daisy Bates" documentary and other air times.

The Mentalist (10pm, CBS) - A fallen fashion designer mounting a comeback is murdered, and agent Darcy continues her manhunt for Red John.

I Just Want My Pants Back (11pm, MTV) - A new series about a twentysomething navigating the ups and downs of post-collegiate life in Brooklyn. In tonight's premiere, Jason Strider has his heart -- and his most beloved pair of blue jeans -- stolen by a one night stand.

One Tree Hill (8pm, CW) - A new cafe in town gives Haley unexpected competition. Also, Chase's new girlfriend has a puzzling secret.

NC State at Boston College (8pm, WRAL) - The only CBS programming you'll miss because of this is a special about Super Bowl commercials and a repeat of "Criminal Minds." If you really want to see those, you know the drill.

Ghost Hunters (9pm, Syfy) - Jason and Grant investigate a Tennessee bed and breakfast, where there are reports of shadowy figures and images of a little girl.

Top Chef: Texas (10pm, Bravo) - The chefs make pancakes for Pee-wee Herman (Paul Reubens with Padma Lakshmi at right) and later hit the streets of San Antonio on bikes to gather ingredients for Pee-wee's big dinner party.

Royal Pains (10pm, USA) - Dr. Van Dyke fills in for Hank while he's sideline with back problems. Elsewhere, Divya and Jill come to the aid of a thief who robbed them, and Jack starts a clinical trial that yields disappointing results.

Hot in Cleveland (10pm, TV Land) - Victoria's enemy Susan Lucci comes looking for support after the cancellation of "All My Children," but Victoria warns her friends that the soap star is not to be trusted. Also, Elka (SAG Award winner Betty White) talks hoops with Baron Davis of the Cleveland Caveliers.