The Vampire Diaries (8pm, CW) - Rebekah opens up to Elena on the night of the homecoming dance. Also, Klaus puts his latest plan into action, but Damon enters into a dangerous partnership to stop him. My Morning Jacket perform.

Parks and Recreation (8:30pm, NBC) - Leslie hosts a Model United Nations at a Pawnee high school. Also, Ron searches for a replacement for Tom (Aziz Ansari, right) and Chris seeks Ann's advice on love after a date cancels on him.

Person of Interest (9pm, CBS) - Finch and Reese are puzzled when the machine turns up a deceased person of interest. Also, Finch reveals more about the machine's origin.

Bones (9pm, Fox) - A new squintern (Luke Kleintank) makes an immediate contribution to a case involving a death of a competitive eater, whose remains are indentified before a premiere event, but his delinquent past makes his welcome to the Jeffersonian a rude one. Meanwhile, Brennan's announcement about her baby irks Booth, and it challenges them to reconsider each otehr's perspective.

Prime Suspect (10pm, NBC) - Jane and Calderon investigate the death of a boy at an upscale preschool, and Rivera asks Duffy to accompany her on a robbery case.

Burn Notice (10pm, USA) - Michael's childhood friend is killed in a gang dispute, so Michael teams up with the victim's brother to exact revenge on the gang.

The Vampire Diaries (8pm, CW) - Elena and Rebekah engage in a power struggle, until Rebekah reveals her family's ancient secrets and violent past with Klaus.

Parks and Recreation (8:30pm, NBC) - A local group predicts the end of the world is near, so Tom decides to throw a huge party and April helps Andy check items off his "bucket list."

Bones (9pm, Fox) - In the Season 7 premiere, the team investigate the death of a woman with a history of amnesia, disappearances and head trauma, and whose corpse is found in a shallow grave. Meanwhile, Booth and a pregnant Brennan discuss their living arrangements once the baby is born.

Grey's Anatomy (9pm, ABC) - George's mother (Debra Monk) returns to Seattle Grace after undergoing a botched surgery at another hospital, and the doctors reminisce about their late colleague.

Prime Suspect (10pm, NBC) - Duffy attempts to give a hit-and-run case to Jane when he thinks it can't be solved, and the clues in the case lead Jane and Evrard to a porn king.

Burn Notice (10pm, USA) - In the midseason premiere, Michael and Fiona plan to abduct a hacker in Puerto Rico to obtain his software, but the man has several other enemies to contend with.

The Mentalist (10pm, CBS) - A serial killer case hits close to home for Jane when he meets a blogger obsessed with the killer and who has devoted his life to finding the person.

The League (10:30pm, FX) - Jenny forgets a special anniversary she shares with Kevin, and Taco sets up an offline social network he calls My Face.

The Vampire Diaries (8pm, CW) - A high school prank night turns deadly when uninvited guests arrive. Meanwhile, Damon tries to get Jeremy to use his ghostly connection to help defeat Klaus, who is tightening his grip on Stefan and using him for increasingly dangerous purposes.

Big Bang Theory (8pm, CBS) - Leonard and Sheldon attend a party at the home of Sheldon's nemesis, Wil Wheaton, who appears in a cameo along with Brent Spiner.

Parks & Recreation (8:30pm, NBC) - Ron takes his boys-only troop of Pawnee Rangers into the wild, prompting Leslie to take her group of Pawnee Goddesses on a weekend adventure.

The Office (9pm, NBC) - Andy tries to impress Robert California by throwing a garden party at the Schrute Farms. Andy's parents (Stephen Collins and Dee Wallace) and brother (Josh Groban) attend, which makes Andy feel awkward.

Project Runway (9pm, Lifetime) - The designers must create a small collection that demonstrates their overall fashion vision. Actress Zoe Saldana is the guest judge.

Grey's Anatomy (9pm, ABC) - Jackson's mother (Debbie Allen) plays a renowned surgeon who arrives at Seattle Grace to perform a groundbreaking transplant.

Prime Suspect (10pm, NBC) - Jane suspects the wife in a stockbroker's murder, turns to hypnotism to help her quit smoking. Also, Matt is upset that his ex-wife doesn't want Jane at their son's birthday party.

*NOTE: Due to baseball, last night's "X-Factor" will air tonight, and tonight's "X-Factor" will air on Sunday. Or something like that. Just consider the Fox schedule in flux until the World Series ends and take anything you see here about Fox with a grain of salt.

NC-born Kevin Williamson executive produces "The Secret Circle" (9 tonight, the CW), about an orphaned girl (Britt Robertson) who moves in with her grandmother (to a town where everybody is remarkable good looking) and learns from other teens in town that she's a witch.

If she combines powers with them, the group may discover what happened to their parents 16 years earlier -- many of whom have died. It's a fun companion to "The Vampire Diaries," although, at least in the first ep, not as flat-out scary or gruesome.

But of course, witches can kill you in more ways than vampires can, so let the body count begin.
 

Community (8pm, NBC) - The Season 2 finale concludes last week's paintball storyline. The study group unite to take down new intruders and common enemies during the intense battle.

The Vampire Diaries (8pm, CW) - The second season ends with lives hanging in the balance as the consequences of the sacrifice ritual become clear. Meanwhile, during a town square viewing of "Gone with the Wind," Damon recalls memories of Katherine in 1864.

American Idol (8pm, Fox) - One of the remaining singers is voted off (the suspense!) and judge Steven Tyler premieres his solo music video "(It) Feels So Good." Also, Season 6 winner Jordin Sparks performs.

CSI (9pm, CBS) - The 11th season concludes with Ray facing serial killer Nate Haskell (Bill Irwin) after he is lured to the house where Haskell's killing spree began.

The First 48 (9pm, A&E) - A Charlotte man is murdered in front of his 9-year-old son.

Bones (9pm, Fox) - Booth puts all his energy into apprehending Jacob Broadsky after an innocent victim is hit by the sniper's bullet, which was meant for Booth.

Parks and Recreation (9:30pm, NBC) - Two new episodes tonight! In the first, Leslie tries to get Ann a job at city hall, which leads to their first fight. Then, Leslie struggles to contain her feelings for Ben when they start out on a road trip to Indianapolis.

American Idol (8pm, Fox) - Someone is cut loose. Season 7 winner David Cook (who?) and Katy Perry perform.

Community (8pm, NBC) - The group reminisce about fun times in a series of flashbacks, including a trip to a ghost town and a glee club performance. NOTE: All of the NBC comedies are new tonight. The good news: no 'Outsourced.' The bad news: 'The Paul Reiser Show' is on and it's even worse. Everything else is solid. Will Ferrell is back on 'The Office' and his first big task is emceeing the Dundies. On 'Parks & Recreation,' Leslie joins an internet dating site and gets matched with someone she already knows. And in a one-hour episode of '30 Rock,' NBC execs mark 'TGS' for cancelation.

Vampire Diaries (8pm, CW) - Elena makes a new ally in her effort to outwit Klaus, but her actions make Stefan and Damon furious. Also, a flashback  to 1491 reveals the origins of the moonstone curse and Katherine's introduction to Elijah and Klaus.

Royal Wedding of a Lifetime (8pm, Lifetime) - Three straight hours of royal wedding minutiae. The three back-to-back shows examine similarities between Kate Middleton and Princess Diana, Kate's dress options, and wedding cakes.

Bones (9pm, Fox) - Booth calls on Walter Sherman (Geoff Stults), a fellow soldier with a bloodhound's tracking skills, for help with a case involving a 17th-century treasure map and the remains of a maritime museum security guard found in the Florida Everglades.

Archer (10pm, FX) - In the Season 2 finale, Krieger works to finish a top secret project and Archer brings a mysterious former KGB agent home to meet Malory.

American Idol (8pm, Fox) - One singer is eliminated. Are you taking for granted that Scotty is safe? Then you didn't see last week's shocking show. Also, Rihanna performs and Kelly Clarkson sings with Jason Aldean.

Vampire Diaries (8pm, CW) - Elena and Stefan attend a 1960s Decade Dance at school, but Klaus arrives after having taken possession of Alaric's body. His plan is to capture Elena and sacrifice her to end the vampire curse.

The Paul Reiser Show (8:30pm, NBC) - Paul Reiser ('Mad About You') returns in a sitcom loosely based on his own life. Reiser plays a TV star who has been out of the business for awhile, but auditions for a Mark Burnett game show after he learns that Larry David ('Curb Your Enthusiasm,' 'Seinfeld') is also interested. We didn't get an advance copy, but reviews have been universally horrible. I want 'Perfect Couples' back!!!

The Office (9pm, NBC) - As Michael trains his replacement (Will Ferrell), the staffers scramble to impress him. Ferrell isn't a permanent replacement, obviously. He'll be on the show for four episodes. Note: All of the NBC comedies are new tonight, so don't forget to check out 'Community' (8pm), 'Parks and Recreation' (9:30), '30 Rock' (10pm), and, I guess, 'Outsourced' (10:30).

Bones (9pm, Fox) - The death of a myth-busting TV host in the West Virginia wilderness may be the work of the legendary chupacabra, though the list of human suspects includes a pet psychic (Jo Anne Worley) who was one of the victim's professional rivals.

American Idol (8pm, Fox) - One of the nine finalists is eliminated. Don't forget to keep track of all things McCreery at our Scotty Watch home base.

The Vampire Diaries (8pm, CW) - TVD finally returns! Tonight, Isobel arrives unexpectedly and her visit upsets Jenna. Also, Matt informs the sheriff that his sister was killed by a vampire.

Perfect Couples (8:30pm, NBC) - The series finale for this underrated and underappreciated sitcom has Vance and Amy getting cold feet at their wedding (no cliffhangers, please). Meanwhile, Dave and Julia prepare their toasts for the weddings, and Leigh exerts her power as wedding planner while Rex tries to make himself part of the big day. I'll miss you, guys!

The Killing (9pm, AMC) - If you missed Sunday's premiere, catch it here.

LisaRaye: The Real McCoy (9pm, TVOne) - In the second season opener, LisaRaye goes to Puerto Rico but her assistant loses some of her possessions.

The Bear Whisperer Returns (10pm, Animal Planet) - A series following wildlife specialist Steve Searles as he protects tourists from black bears in Mammoth Lakes, California. In this first episode, he has to make a tough decision about a wounded bear. Okay, right there, I can tell you I am not watching this show.

Real Housewives of New York (10pm, Bravo) - Season 4 begins with Ramona hosting a rooftop cocktail party. Single mother and entrepreneur Cindy Barshop joins the cast, replacing Bethenny Frankel.

Secret Diary of a Call Girl (10:30pm, Showtime) - Season 4 begins with Belle entertaining a new business proposition and dealing with an unwelcome houseguest.

Gigolos (11pm, Showtime) - A new reality series offering a peek into the lives of male escorts in Las Vegas. In tonight's opener, one of the men scores a job with a teacher looking for some after-school romance.

Community (8pm, NBC) - The group goes to a bar to celebrate Troy's 21st birthday. The festivities turn Britta and Jeff silly, while Shirley goes on a mission to remove questionable photos of herself and Abed finds a kindred spirit. And after discovering the remains of a birthday cake in the study room, Senor Chang sets out to track down the gang.

The Vampire Diaries (8pm, CW) - Jeremy's life is threatened when he tries to help Bonnie retrieve the moonstone. Also, Tyler shows Caroline the Lockwood cellar, where they  make a terrifying discovery.

Grey's Anatomy (9pm, ABC) - Derek takes Cristina (right) on a fishing trip to escape her troubles despite Meredith's objections. Meanwhile, Teddy directs all of her energy on an uninsured dying patient, played by Scott Foley.

The Kennedy Detail (9pm, Discovery Channel) - This got pulled by Discovery at the last minute last week, and I have no idea why. It's airing tonight. It's a special in which President John F. Kennedy's assassination is discussed by members of the Secret Service detail charged with protecting him on the day he was  killed.

Burn Notice (10pm, USA) - Michael's brother Nate gets into trouble and Michael has to help him, while Sam and Jesse try to prevent the sale of sensitive government documents to bad guys. I feel like I've seen this episode about five (hundred) times.

Vampire Diaries (8pm, CW) - Katherine's past is explored in 1490 Bulgaria, and Damon tries to uncover the real purpose of the mysterious moonstone.

Community (8pm, NBC) - Everyone is a suspect when Annie's favorite pen goes missing, so the group lock themselves in until the thief is found. Jeff heads up the investigation but Abed and Troy (left) aren't as invested in the mystery because they want to go to a nearby puppy parade.

30 Rock (8:30pm, NBC) - Jack manipulates a congressional election to help a candidate (John Slattery, "Mad Men"), thereby leveraging an advantage for the network. Meanwhile, a perfect pair of new jeans gives Liz confidence.

Grey's Anatomy (9pm, ABC) - The surgeons work to save a dying Middle East political figure amid tightened security at the hospital. Also, Alex makes a bad first impression on a new pediatrics attending (Peter MacNicol) and Cristina decides to decorate her new place and throw a housewarming party.

The First 48 (9pm, A&E) - Detectives in the terrifying crime mecca of Charlotte, North Carolina, investigate the murder of a man who was shot behind his girlfriend's house. Charlotte is one of the cities regularly featured in the current season of "The First 48."

Burn Notice (10pm, USA) - In the midseason return, Michael (right) tries to prevent a bombing arranged by a lawyer out for revenge against a local gang. Elsewhere, Michael and Jesse must track down a highly sensitive document that has been stolen.