Who Do You Think You Are (8pm, NBC) - Rob Lowe's search of his ancestry leads to Germany and the Library of Congress. Lowe finds an unexpected connection to the Revolutionary War and America's founding fathers.
Nikita (8pm, CW) - A plot to bankrupt Percy backfires and Percy snatches Birkhoff's life savings instead. Birkhoff is then arrested by the FBI while trying to retrieve it, and Nikita needs to free him before Division gets ahold of him.
Whale Wars: Viking Shores (9pm, Animal Planet) - The premiere of new "Whale Wars" spinoff following the marine-conservation group Sea Shepherd on a new campaign to stop the hunting of pilot whales in the Faroe Islands in the North Atlantic Ocean. The photo on the right isn't touched up. That's blood in the water.
Fringe (9pm, Fox) - The Fringe teams from both worlds are united by a common cause, and new developments are linked to the children from the Cortexiphan experiments.
In Plain Sight (10pm, USA) - The FBI keeps an eye on Mary after her father goes on the lam seeking vengeance. Mary tries to lose the agents tailer her in order to track her father down herself.
Blue Bloods (10pm, CBS) - A leak in the NYPD endangers a Russian mob trial witness whom Danny and Jackie are assigned to protect. Elsewhere, Erin is offered a job as deputy mayor, which would pair her with her father.

The Finder (8pm, Fox) - Walter's search for a missing husband and father, who is also sought by an FBI agent, hinges on a partial voice-mail recording of his last message to his family. Meanwhile, the case conjures up painful memories for Leo of his deceased wife and daughter.
Grimm (9pm, NBC) - Nick's romantic getaway with Juliette turns problematic when he meets the unsettling neighbors and learns that the troubled wife has valuable treasure to protect.
Who Do You Think You Are (8pm, NBC) - Oscar winner Helen Hunt investigates her paternal ancestry on a voyage that leads her to San Francisco, where she ultimately unearths information about her great-great-grandmother's involvement in the fight for women's rights.
Fairly Legal (9pm, USA) - In the Season 2 premiere, Kate returns to work and mediates a case between a corporation and a former employee, who claims he was exposed to harmful chemicals on the job.
Teen Spirit (7pm, ABC Family) - In a new TV movie filmed in Wilmington earlier this year, a recently deceased queen bee (Cassie Scerbo) must transform a geeky classmate (Lindsey Shaw) into their school's prom queen in order to be granted a rewarding afterlife.
Falling Skies (9pm, TNT) - In a special 2-hour season finale, growing tension divides the 2nd Mass unit as their planned assault on an alien base draws near, and Tom (Noah Wyle, right) contemplates a disturbing discovery about the Skitters. Most importantly, mysteries about the aliens' motives might finally be answered.
MTV Movie Awards (9pm, MTV) - SNL's Jason Sudeikis (right) hosts the 20th annual film awards show from Los Angeles. Honorees include Reese Witherspoon, who will receive the MTV Generation Award. Performances from Foo Fighters, Lupe Fiasco, and Trey Songz. Presenters include Ryan Reynolds, Steve Carrell, Cameron Diaz, Jesse Eisenberg, Selena Gomez, Jason Segal, and Aziz Ansari.
Madagascar (8pm, Animal Planet) - A new Animal Planet special in which conservationists examine the biodiversity of Madagascar and its unique plants and animals. Lemurs!!!
South Riding (9pm, UNC-TV) - 'Upstairs Downstairs' just ended and already Masterpiece Theatre has a new three-part series to keep us hungry for British culture. Tonight is part one of an adaptation of Winifred Holtby's 1936 novel about a teacher (Maxwell Martin, left)) who returns home to Yorkshire to apply for the headmistress position at a girls' school, and butts heads with a landowner (David Morrissey) who dislikes her social agenda and pacifist views. You can
Ghost Hunters Academy (9pm, Syfy) - The cadets examine Ohio's Mansfield reformatory, where "The Shawshank Redemption" was filmed.
