Community (8pm, NBC) - The Season 2 finale concludes last week's paintball storyline. The study group unite to take down new intruders and common enemies during the intense battle.
The Vampire Diaries (8pm, CW) - The second season ends with lives hanging in the balance as the consequences of the sacrifice ritual become clear. Meanwhile, during a town square viewing of "Gone with the Wind," Damon recalls memories of Katherine in 1864.
American Idol (8pm, Fox) - One of the remaining singers is voted off (the suspense!) and judge Steven Tyler premieres his solo music video "(It) Feels So Good." Also, Season 6 winner Jordin Sparks performs.
CSI (9pm, CBS) - The 11th season concludes with Ray facing serial killer Nate Haskell (Bill Irwin) after he is lured to the house where Haskell's killing spree began.
The First 48 (9pm, A&E) - A Charlotte man is murdered in front of his 9-year-old son.
Bones (9pm, Fox) - Booth puts all his energy into apprehending Jacob Broadsky after an innocent victim is hit by the sniper's bullet, which was meant for Booth.
Parks and Recreation (9:30pm, NBC) - Two new episodes tonight! In the first, Leslie tries to get Ann a job at city hall, which leads to their first fight. Then, Leslie struggles to contain her feelings for Ben when they start out on a road trip to Indianapolis.