Vampire Diaries (8pm, CW) - Season two opens with Elena finding her uncle John's bloody body and learning Jeremy's fate, and Damon realizing that Katherine has returned. Meanwhile, Caroline is taken to the hospital following a car accident, and Tyler's mysterious uncle Mason arrives in town.
Nikita (9pm, CW) - The pilot of a new show about a spy who returns to exact revenge on the clandestine agency that betrayed her after training her to be an assassin. Nikita is played by Maggie Q. Check out our review.
Rookie Blue (9pm, ABC) - In tonight's 2-hour season finale, the rookies face evaluations to determine whether or not they keep their badges, and Andy thinks about quitting the force altogether. But first, Andy and Chris make an arrest and unwittingly compromise a major drug sting. Andy tries to salvage the sting by going undercover with Swarek, but both their lives are endangered. Also, Dov learns a hard truth about his girlfriend and must choose between the job and his love life. Hopefully, WTVD won't pre-empt this again for another Carolina Panthers game.
Project Runway (9pm, Lifetime) - The remaining designers are assigned by judge Michael Kors to create resort attire.
Destination Truth (9pm, Syfy) - In the fourth season premiere, the Italian city of Pompeii is investigated for paranormal activity.
Beast Legends (10pm, Syfy) - In the first episode of this new Syfy series, the focus is on Kraken, a mythical sea monster (our review). Release him!
Watch What Happens Live (10pm, Bravo) - Andy Cohen opens his third season with Teresa Giudice and Stacie Scott Turner.