What's on this Week? (1/30 - 2/5)

Monday: Gossip Girl: "G.G." (05x13)

OMG! GOSSIP GIRL HITS 100 EPISODES! - The much-anticipated 100th episode will open with a musical dream sequence featuring Serena, Blair and all the men in their lives. Also, while Chuck wrestles with the reality that Blair is about to walk down the aisle with Prince Louis, the return of Georgina Sparks might make the royal affair a royal disaster.

Monday: House: "Runaways" (08x10)

The team treats an underage and homeless female patient, but when her symptoms worsen and call for an invasive surgery requiring adult consent, House and Adams argue over whether they should contact social services. The patient confesses that she ran away from home after struggling to take care of her mother, a recovering drug addict. But when her mother appears at her bedside, a more complicated relationship is revealed and the patient's mother must put the past aside and make the best decision for her daughter. Meanwhile, Taub has a difficult time connecting with his infant daughters and House threatens to exploit Foreman's relationship with a married woman.

Thursday: Grey's Anatomy: "If/Then" (08x13)

As Meredith puts Zola to bed and falls asleep, she begins to wonder -- what if her mother had never had Alzheimer's and she'd had loving, supportive parents? The reverberations of a happy Meredith Grey change the world of Seattle Grace as we know it. What if she had never met Derek in that bar and he had never separated from Addison? What if Callie and Owen had become a couple long before she met Arizona? And what if Bailey never evolved from the meek intern she once was?

Thursday: Private Practice: "The Time Has Come" (05x13)

Sheldon counsels Sam's friend, Rick, an Army veteran suffering from PTSD who harbors a secreted sexual trauma; Erica and Mason are involved in a nonfatal car accident that forces Cooper and Charlotte to further come to grips with their future; Violet and Pete struggle to navigate life after marriage when he finds her kissing Scott; and Addison and Jack attend a medical conference they won't soon forget.

Thursday: The Big Bang Theory: "The Friendship Contraction" (05x15)

Sheldon’s selfish demands force Leonard to reconsider their friendship. Meanwhile, Wolowitz tries to pick his astronaut nickname.

Thursday: The Vampire Diaries: "Bringing Out The Dead" (03x13)

Sheriff Forbes delivers some disturbing news to Alaric and Elena about the weapon used in a recent murder. In the Salvatore brothers’ escalating quest to kill, Stefan turns to Bonnie and Abby, while Damon reaches out to an old acquaintance for help in setting up an elaborate plan. Intent on a plan of his own, Klaus hosts a strange dinner party, where he reveals another story from his family’s violent past until an unexpected guest brings the party to an end. Meanwhile, Caroline is heartbroken when she is unable to stop a tragedy from unfolding.

Friday: Fringe: "Making Angels" (04x11)

Our Astrid gets an unexpected visit from her Alternate, while Peter and Olivia track a killer using a toxin that has yet to be invented. Both universes collide in a case that pushes the boundaries of what is possible.