The TVLine-Up: TV Worth Watching This Thursday

On TV this first day of February sweeps: Madonna gives Idol her “Luvin,” the Parks and Rec gang celebrates (an unconventional) Valentine’s Day, The Mentalist investigates a killer with style, an MTV guy gets Pants‘d and more. As but a supplement to TVLine’s original features, here are 11 programs to keep on your radar.

8 pm American Idol (Fox) | Madonna will world premiere the video for her new single, “Give Me All Your Luvin,” featuring Nicki Minaj and M.I.A. Plus, auditions from St. Louis, Mo.

8 pm The Vampire Diaries (The CW) | In the quest to kill Klaus, Stefan turns to Bonnie and Abby, while Damon reaches out to an old acquaintance to help set up an elaborate plan; Klaus hosts a strange dinner party that is crashed by an unexpected guest. (Not again, Tyler!)

8 pm The Big Bang Theory (CBS) | Sheldon’s selfish demands force Leonard to reconsider their friendship; Wolowitz tries to pick his astronaut nickname. NASA astronaut Mike Massimino guest-stars as himself.

8:30 pm Parks and Recreation (NBC) | It’s Valentine’s Day and Leslie decides she needs to find Ann a new man; Ben enlists Ron’s help when he is stumped by Leslie’s elaborate scavenger hunt; Chris is literally depressed about his love life.

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9 pm Person of Interest (CBS) | Reese and Finch’s call upon a former POI for help with their latest case — the resourceful and well-connected Zoe (played by Paige Turco).

9 pm The Finder (FOX) | When Isabel’s new boyfriend (House of Payne‘s Lance Gross), an all-star baseball athlete, gets robbed, Walter helps find his stolen collectibles — but discovers much more.

9 pm The Office (NBC) | After Jim returns from jury duty, Dwight questions him on every detail of his case;  Angela and the senator (guest star Jack Coleman) welcome their new baby.

9:30 pm Up All Night (NBC) | When Chris’s older brother (guest star Dean Winters, 30 Rock) comes to visit, the two revert to their old competitive childhood ways; Reagan and Ava run a charity auction to help Amy get a spot in a coveted preschool.

The Secret Circle‘s Shelley Hennig on Diana’s Love Life, Plus An ‘Unexpected’ Diana/Faye Moment

10 pm The Mentalist (CBS) | Jane and the CBI narrow down the list of suspects when a clothing designer on the verge of a comeback becomes a  victim of more than fashion; FBI Agent Darcy (Catherine Dent) continues her investigation into Red John.

10 pm Private Practice (ABC) | 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 paramedic Scott (played by Stephen Amell aka The CW’s prospective new Green Arrow).

Save the Dates: February’s Big Premieres and Finales! 

11 pm I Just Want My Pants Back (MTV) | Series premiere: Jason, the ultimate slacker, is not the motivated type. But when a one-night stand steals his heart and his pants, he embarks on a quest to get his beloved jeans back — and hopefully the girl.

Which of the above is must-see for you? Also, hit Comments to offer your own tune-in suggestions.