It's the Great Pumpkin, Charlie Brown (8pm, ABC) - In this 1966 classic, the Peanuts gang celebrates Halloween with Linus hoping he'll be visited by The Great Pumpkin.

Community (8pm, NBC) - Britta fears someone in the group is a sociopath after her anonymous personality test turns up with unsettling results. In order to find out who's disturbed, she and Jeff persuade the gang to tell horror stories.

Parks and Recreation (8:30pm, NBC) - Andy and April host a Halloween party at their house and Tom emcees an event for Leslie's campaign.

Project Runway (9pm, Lifetime) - In the Season 9 finale, the final designers frantically ready their collections in a bid to be the best at Fashion Week. Designer L'Wren Scott is the guest judge.

The Secret Circle (9pm, CW) - Cassie throws a Halloween party, but it takes a dangerous turn when some uninvited guests who have their sights set on the circle show up.

Prime Suspect (10pm, NBC) - As Jane investigates the murder of a young woman whose body was found in the park, Duffy and Evrard search for the stepfather of the murder victim.

The Mentalist (10pm, CBS) - A police chief is murdered in a resort town, and the case leads Lisbon to reunite with her brother, a bounty hunter who's searching for a bail-jumper.

Rules of Engagement (8:30pm, CBS) - In the sixth season opener, Russell's dad meets Liz and Russell (David Spade, left) goes to great lengths to win his dad's approval.

Grey's Anatomy (9pm, ABC) - Meredith is on the outs at the hospital so she must enlist Lexie to get Derek interested in a brain tumor case. Meredith also gives April advice in secret about Bailey's clinical trial.

Miss Representation (9pm, OWN) - The negative and sexual media depictions of women are assailed by an array of prominent women, including Katie Couric, Jane Fonda, Nancy Pelosi, Condoleezza Rice, and Rachel Maddow.

The Secret Circle (9pm, CW) - Faye plots against a former boyfriend who breaks her heart when he suddenly returns to town and sets his sights on Cassie.

The Mentalist (10pm, CBS) - A woman's body is found on an island off the California coast, and the team questions an odd group assembled on the island.

It's Always Sunny in Philadelphia (10pm, FX) - It's not always sunny in Philadelphia: an apocalyptic storm is bearing down on the city and everyone's in panic mode -- except for Frank.

Ringer (8pm, CW) - It's a good time to catch "Ringer" and "The Secret Circle" (9pm) if you missed those premieres earlier this week.

2011 ALMA Awards (8pm, NBC) - Eva Longoria and George Lopez host the 16th annual American Latino Media Arts awards honoring Hispanic achievement in entertainment.

Unleashed by Garo (9pm, Sundance) - Garo designs a dress for a woman who lost more than 100 pounds, power suits for a recovering alcoholic looking to rejoin the workforce, and a party dress for the owner of a performance agency who is attending a chic event.

Roseanne's Nuts (10pm, Lifetime) - Roseanne hosts a luau to launch her nut business, and although the men want to hunt a pig on her farm and cook it for the celebration, Roseanne isn't sure she wants to allow that.

Haven (10pm, Syfy) - A local teen goes missing in Haven's woods while a murderer is on the loose, and the search party finds evidence to support the existence of a supernatural creature in the forest.

Strike Back (10pm, Cinemax) - A global arms dealer with a link to Latif is recruited to help Scott and Stonebridge recover a kidnapped English doctor in Darfur.

Vampire Diaries (8pm, CW) - The third season begins with Elena and Damon searching for Stefan, who is with Klaus tracking a werewolf. Meanwhile, Caroline plans a party for Elena's 18th birthday, and Jeremy sees the ghosts of his late sister and his former girlfriend.

The Secret Circle (9pm, CW) - In this series premiere, teen Cassie Blake (Britt Robertson) moves to a new town, where she learns she is a witch and meets a circle of friends who inform her they are also witches. Adrienne's thoughts on this one, which is from New Bern native Kevin Williamson ("Vampire Diaries").

Project Runway (9pm, Lifetime) - The contestants are introduced to nine men on the runway, and then discover they must design for the men's significant others. Actress Malin Akerman is the guest judge.

It's Always Sunny in Philadelphia (10pm, FX) - In the Season 7 premiere, Frank wants to marry a prostitute and the gang can't talk him out of it. While Dee tries to burnish the  hooker's heart of gold, Charlie tries distracting Frank by fixing him up with another woman. Also, Mac has put on a lot of weight.

Archer (10:30pm, FX) - Tonight is part one of a three part episode episode arc leading up to the show's official third series launch in early 2012. Tonight, Archer, in hiding since the murder of his fiancee, is finally tracked down in the South Pacific by handsome adventurer Rip Riley. To get Archer safely back to ISIS, Riley will have to survive the elements, a plane crash, a shark attack, starvation, drowning, exposure, and possibly pirates. And of course, Archer.

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.