Bones (8pm, Fox) - Series star David Boreanaz directs the Season 7 finale, which features the return of Christopher Pelant when the "hactivist" and suspected serial killer is back in court, but the team's efforts to pin another murder on him don't go as planned after evidence points to Brennan as the culprit.

America's Got Talent (8pm, Fox) - Howard Stern joins judges Howie Mandel and Sharon Osbourne in the show's seventh season premiere.

How I Met Your Mother (8pm, CBS) - The seventh season ends with Lily going into labor while Marshall is partying in Atlantic City. Later in the one-hour finale, action jumps to the future as the gang gather for Barney's wedding and reminisce about how they emboldened Ted to find his true love and track down the one that got away.

Gossip Girl (8pm, CW) - Blair makes a choice between Chuck and Dan in the fifth season finale.

Bachelorette (9pm, ABC) - Emily Maynard begins her search for love in her hometown of Charlotte. Emily starts with 25 suitors and pares the group to 19.

Johnny Carson: American Masters (9pm, UNC-TV) - Kevin Spacey narrates this insightful profile of Johnny Carson, whose cool charm, quick wit and masterful timing made him the king of late night TV during his 30-year "Tonight Show" run. The biography features a wealth of show clips and remarks by family, friends, and colleagues.

Two and a Half Men (9pm, CBS) - In the ninth season finale, Jake makes an important decision about his future after graduating from high school.

Hart of Dixie (9pm, CW) - The first season ends with a huge storm hitting town on George and Lemon's wedding day.

Mike and Molly (9:30pm, CBS) - In the Season 2 finale, Mike and Molly walk down the aisle but the trip is not without a few wedding day glitches.

Smash (10pm, NBC) - The first season finale, Derek makes a major decision and it affects both Karen and Ivy. Meanwhile, Tom and Julia scramble to save the show, and Ellis reveals where his loyalties truly lie.

Hawaii Five-0 (10pm, CBS) - The second season concludes with the Five-0 losing one of its own in the line of duty. Meanwhile, another team member is forced to choose between kidnapped loved ones.

Hart of Dixie (9pm, CW) - Scotty McCreery makes an appearance on tonight's episode, but there's no acting involved -- he'll be playing himself. The "American Idol" winner from Garner will perform his hit "The Trouble With Girls" during a romantic scene in a bar featuring Zoe (Rachel Bilson) and George (Scott Porter). Raleigh's Tift Merritt had a similar gig on "Hart of Dixie" back in February. Tift sang "Sweet Spot" at the town's annual Valentine's dance. Click below to see another picture of Scotty from the "Hart of Dixie" set.

Bones (8pm, Fox) - Booth's son Parker comes home from England, and Brennan wonders how he'll react to his new baby sister. Meanwhile, the discovery of a truck-company employee's corpse in the woods prompts a visit to the victim's son's karate class.

American Pickers (9pm, History) - Mike searches for the legendary XAVW motorbike in North Carolina, and Frank gambles on a collection of Indian artifacts. Also in this episode, architectural salvage and a military artifact.

20/20: Dance Floor Confidential (10pm, ABC) - ABC squeezes another hour of programming from their "Dances with the Stars" franchise by having 20/20 go "behind the scenes."

Smash (10pm, NBC) - Karen finds Rebecca's charmed life very enticing, but Derek finds Rebecca to be exasperating. Meanwhile, Eileen has her ex-husband meet her hunky new boyfriend, and Julia's son goes missing (First thought: "Hooray!" Second thought: "I hope Ellis is with him!"). 

The Secret Life of the American Teenager (8pm, ABC Family) - Amy worries she might be pregnant fora  second time, and Ben tries to impress Dylan's parents. Also, George is puzzled by Anne and Nora's bonding.

2 Broke Girls (8:30pm, CBS) - Caroline helps Max prepare her first tax return, but in doing so, forgets to mail Earl's return.

House (9pm, Fox) - House and the team take on the case of a man who is bleeding from his eyes. Meanwhile, House's favorite hooker, Emily, is leaving the business to get married, so he teams up with his "wife," Dominika (Karolina Wydra, left), to sabotage Emily's relationship.

Eureka (9pm, Syfy) - In the Season 5 premiere, the Astraeus crew returns to Eureka four years later and must adapt to a myriad of changes, including a more oppressive version of Deputy Andy.

Smash (10pm, NBC) - Karen and Ivy team up to form an awkward alliance when movie star Rebecca Duvall (Uma Thurman) shows up for work.

Castle (10pm, ABC) - When things get tense with Beckett, Castle decides to team up with a new partner: a tough gang-unit detective who exposes him to a seedier side of police business and puts him in risky situations.

Bones (8pm, Fox) - Booth (David Boreanaz, left) and Brennan get help from Special Agent Genny Shaw in identifying the remains of an extreme couponer whose body was dragged by an 18-wheeler. Meanwhile, Brennan returns to work after having her baby.

Gossip Girl (8pm, CW) - Serena wants to pass her It-Girl torch to a hesitant Lola, whom she pressures to do a modeling gig at a lingerie show. Elsewhere, Chuck seeks Blair's guidance regarding his past.

How I Met Your Mother (8pm, CBS) - Speculations run wild as Ted, Barney and Marshall imagine what their lives would be like three years down the road.

2 Broke Girls (8:30pm, CBS) - Max and Caroline participate in a clinical drug trial to raise money to help Caroline's imprisoned father.

Smash (10pm, NBC) - A famous movie star (played by Uma Thurman) signs to do the show, but then gets stuck in Cuba.

Hawaii Five-0 (10pm, CBS) - Max believes that a serial killer who has ties to his past and is known as the Trashman is responsible for a recent murder. To convince the Five-0 that his theory is correct, Max reveals some some surprising information about his childhood.

Bones (8pm, Fox) - An escaped convict's remains are found in a residential sewer pipe, but the team find evidence that a murder occurred inside a prison.

NCAA Championship (9pm, CBS) - The championship game in New Orleans.

American Masters: Margaret Mitchell (9pm, UNC-TV) - "Margaret Mitchell: American Rebel" profiles the author who blazed trails as one of Georgia's first female newspaper reporters and the author of "Gone with the Wind." Mitchell (left) funded the education of the South's first black doctors with her "Gone with the Wind" money. Includes reenactments based on her letters and remarks by friend Sara Mitchell Parsons and prominent authors such as Pat Conroy and Pearl Cleage. At 10 p.m., a second episode of "American Masters" will focus on Harper Lee, whose childhood in Monroe, Alabama, provided the inspiration for her classic 1960 novel, "To Kill a Mockingbird." (Photo courtesy of the Atlanta History Center)

Castle (10pm, ABC) - A Scotland Yard detective works with Castle and Beckett to solve the murder of a British model whom he knew personally. Meanwhile, Lanie advises Beckett to stop stalling and pursue Castle romantically.

Smash (10pm, NBC) - A top-tier star is sought for the musical, and Eileen wants Tom to come up with a new name for the show.

Intervention (10pm, A&E) - In the 12th-season finale, a mother and former model battles a daily dependence on alcohol, and a once-promising cellist now smokes PCP.

Lost Girl (10pm, Syfy) - Bo and Dyson portray a married couple at a country club to help a friend from Kenzi's criminal past.

Alcatraz (8pm, Fox) - Two new back-to-back episodes close out the season tonight. In the episodes, Rebecca and Doc close in on a man who may be the key to understanding why the criminals are returning, and a discovery is made beneath the halls of the prison.

Finding Your Roots with Henry Louis Gates Jr. (9pm, UNC-TV) - Historian Henry Louis Gates Jr. helps two New Orleans natives -- Harry Connick Jr. and Branford Marsalis (who currently lives in Durham) -- trace their roots. In a second episode airing at 10, Newark, N.J., mayor Cory Booker and Georgia representative John Lewis are researched.

Being Human (9pm, Syfy) - Sally tries to fix a life that she ruined and Josh must choose between Nora and Julia.

Smash (10pm, NBC) - Derek plots to steal the musical and he wants Karen to assist him. Meanwhile, Eileen's daughter makes a surprise visit home and Ivy is uncertain about her future.

Castle (10pm, ABC) - Five people are killed in a bomb explosion at a protest rally, and Castle and Beckett try to uncover who planted the deadly device by focusing on the crucial seconds prior to the blast.

Brooklyn 11223 (11pm, Oxygen) - A new reality show built around a three-year feud between three best friends over whether one of the women had sex with her friend's then-boyfriend. Read Adrienne's review.

Dancing with the Stars (8pm, ABC) - The 14th season begins with 12 couples dancing either the fox-trot or the cha-cha. Gladys Knight, Melissa Gilbert, and Martina Navratilova are among the dancers, but here is the full list of this season's competitors. Click below to see a photo of the full cast.

Pretty Little Liars (8pm, ABC Family) - The secret identity of "A" is revealed in tonight's season finale.

How I Met Your Mother (8pm, CBS) - The gang try to break up Barney and Quinn after learning that the couple plan to move in together.

2 Broke Girls (8:30pm, CBS) - Max and Caroline enjoy a spring getaway when they take care of a dog at a couple's ritzy apartment.

Alcatraz (9pm, Fox) - Musically inclined serial killer Webb Porter (relation to Cole?) resurfaces and causes trouble.

Hawaii Five-0 (10pm, CBS) - McGarrett's sister is arrested for allegedly smuggling $20 million in conflict diamonds. To clear her name, Steve enlists the help of a former diamond smuggler to set up a sting operation. Ed Asner reprises the role of smuggler August March, which he created on the original series, and footage from that 1975 episode is shown. In tonight's show, March is now out of prison after serving a 30-year sentence.

Smash (10pm, NBC) - The Marilyn musical is performed in front of a group of potential investors, and Ivy's confidence is weakened by her mom, a Broadway veteran. Also, repercussions await Julia and Michael.

Lost Girl (10pm, Syfy) - Bo probes a sex-related murder case with her new friend, Saskia.

The Bachelor (8pm, ABC) - It's the season finale and it seems pretty certain the doofus bachelor picks the witchy bachelorette, right? Enh, who cares anymore. Courtney and Lindzi meet Ben's mom and sister, and Ben proposes to someone (cough-Courtney-cough). In the 10 o'clock hour, Ben and the "winner" review their very public courtship and reveal their plans for the future.

The Voice (8pm, NBC) - The Battle Round continues.

Alcatraz (9pm, Fox) - An innocent man from Alcatraz resurfaces to commit crimes.

Live from the Artists Den (10pm, UNC-TV) - The full season of this music series doesn't begin until April 1, but thanks to UNC-TV's pledge drive, we're getting an early taste: a performance by Adele recorded in February 2011 at the Santa Monica Bay Woman's Club.

Smash (10pm, NBC) - Vocal problems begin to plague Ivy. Meanwhile, Julia finds it difficult to stay away from Michael and Karen books a gig as a Bar Mitzvah singer.

Navajo Cops (10pm, National Geographic Channel) - A new series following a Navajo police force on the largest Indian reservation in North America. In the premiere, officers try to track an unidentified creature after receiving numerous reports of people hearing strange noises in the middle of the night.

The Voice (8pm, NBC) - All the teams are set, so the battle round kicks off with team members facing off in duets and coaches enlisting help from star mentors such as Lionel Richie, Kelly Clarkson, Miranda Lambert (how'd they get her!?), Jewel, Alanis Morrissette, Robin Thicke, Kenneth "Babyface" Edmonds and Ne-Yo.

The Bachelor: The Women Tell All (8pm, ABC) - Ben faces the bachelorettes he rejected. And one women who is still in the running, Courtney, tearfully apologizes to the women (and hopefully to the world) for being such a witch.

Alcatraz (8pm, Fox) - Two hours of "Alcatraz" tonight. Not sure exactly how they'll do this since they have to repeat last week's preempted episode, but one of tonight's episodes will feature the Ames brothers -- two of The Rock's most violent criminals.

The Lying Game (9pm, ABC Family) - In the first season finale, a rushed wedding is planned and Sutton pressures Emma to tell Kristin what they discovered at Rebecca's.

Smash (10pm, NBC) - Karen discovers a new acting opportunity while accompanying Dev to a government party, while Ivy worries about her relationship with Derek and her spot in the show.

Love Broker (10pm, Bravo) - Matchmaker Lori Zaslow creates love connections for upscale New York clients in the premiere of this new reality series.

How I Met Your Mother (8pm, CBS) - Robin moves to the suburbs with Lily and Marshall and Ted wonders what to do with her empty room. Meanwhile, Barney decides to court a stripper.

*House (8pm, Fox) - House's mother (Diane Baker) shows up with news about a new man in her life.

Being Human (9pm, Syfy) - Josh reaches out to Nora and Sally finds out who has been haunting her. Meanwhile, Aiden is targeted by werewolf twins.

*Alcatraz (9pm, Fox) - An innocent man from Alcatraz resurfaces to commit crimes.

Hawaii Five-0 (10pm, CBS) - A famous talk-radio DJ is murdered and the investigation brings Five-0 in contact with a retired NYPD bomb expert (at James Caan, right with son Scott Caan) with ties to the victim.

Smash (10pm, NBC) - Derek hosts a party for a popular young star, reminding Karen she must propel her career. Meanwhile, Eileen tests a crafty way to secure funds and Tom dates someone new.

Lost Girl (10pm, Syfy) - Kenzi inadvertently brings home a vicious Fae spider that can make people psychotic after she performs a spiritual cleansing of a house.  

Fashion Police (10pm, E!) -  A review of last night's 2012 Academy Awards show fashions.

*Rescheduling of Daytona 500 will likely preempt "House" and "Alcatraz" tonight, but it's not 100% certain yet.