The TVLine-Up: TV Worth Watching This Thursday

On TV this Thursday: School is (finally) back in session on Community, CIA agent Ashley Judd’s son goes Missing, the Project Runway All Stars present their final collections, Archer braves the final frontier and more. As but a supplement to TVLine’s original features (linked below), here are nine programs to keep on your radar.

Smallville‘s Cassidy Freeman Teases ‘Sordid’ Vampire Diaries Threesome, Reigniting Damon’s Bad Boy Ways

8 pm American Idol (Fox) | This week’s live results — and a possible ejection from the competition.

8 pm Missing (ABC) | Series premiere: In her first TV starring role, Ashley Judd (Double Jeopardy) plays a former CIA operative who, when her son disappears under suspicious circumstances while studying abroad, takes matters into her own hands to track him down. Game of Thrones‘ Sean Bean and Trauma‘s Cliff Curtis also star.

8 pm Community (NBC) | They’re baaaaack! Following Andre’s big proposal, Britta and Annie get busy planning the nuptials, Jeff prepares to give a wedding speech and Troy and Abed try to get “normal” for the celebration. (Get more scoop in Spoiler Alert! and see photos from tonight’s episode.)

8:30 pm 30 Rock (NBC) | New time slot alert! Liz believes her St. Patrick’s Day is cursed when Dennis (returning guest star Dean Winters) returns to reap mayhem on her relationship.

Secret Circle Boss Previews Blackwell’s Intentions, Retribution for Charles’ Crimes and More!

9 pm Grey’s Anatomy (ABC) | Derek encourages a hesitant Meredith to work with him again in neurology (get scoop on how that turns out); Jackson’s mother returns to Seattle Grace and develops an interest in Richard. P.S. Jesse Williams will be doing a live Twitter chat during the West Coast Airing.

9 pm Project Runway All-Stars (Lifetime) | Part 1 of the finale kicks off as the final three present their signature collections to a VIP runway show crowd. Guest judges include Tommy Hilfiger and Neiman Marcus’ Ken Downing.

9 pm The Office (NBC) | Andy drives across the country to reunite with Erin (see photos); Nellie (played by Catherine Tate) shows up in Scranton and tries to claim the manager position (watch video).

Jason Isaacs Weighs In on Awake‘s Big Mysteries, Promises the Show Will Leave You Breathless

10 pm Archer (FX) | In the first part of the Season 3 finale, Archer and his colleagues at ISIS voyage to the final frontier, trying to prevent a catastrophe on the International Space Station.

10 pm Private Practice (ABC) | Sheldon warns Sam that he may be in over his head when he insists on caring for Corinne at home; a badly beaten Scott arrives at the ER; Erica’s health takes a turn for the worse. Press PLAY below to see the episode’s director, Paul Adelstein, preview the emotional hour:

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