One Tree Hill (8pm, CW) - In the emotional series finale, the 10th anniversary of Tric is celebrated, and some former Tree Hill residents return for the festivities. "One Tree Hill" ran for nine seasons and was filmed in Wilmington. Pictured here, Austin Nichols as Julian and Sophia Bush as Brooke.

Best Friends Forever (8:30pm, NBC) - In the pilot of another throwaway NBC sitcom (see "Bent" below), a woman moves back to Brooklyn and in with her best friend after being served with divorce papers.

Bent (9pm, NBC) - The final two episodes of this great but under-appreciated sitcom air tonight. In the first, Alex fears Pete's slacker ways are resurfacing and Screwsie has Gary pet sit her boss's difficult cat. In the second episode, Alex dreams about Pete while on vacation with Ben, causing her to reexamine her feelings, and Walk gets ready to make his latest theater debut.

Happy Endings (9:30pm, ABC) - For the third week in a row, everything on ABC tonight is a repeat except for this gem, which has its second season finale. The gang attend another wedding and Penny is upset about not having a date, and Brad has a tough time breaking important news to Jane. Also, Max tries to muster the courage to hit the stage with his old all-male Madonna cover band.

CSI (10pm, CBS) - A man is gunned down in a casino at point-blank range and the CSIs shut down the building to find the killer.

One Tree Hill (8pm, CW) - Haley host an annual boat festival while Mouth and Millie alter their morning show.

Bent (9pm, NBC) - Pete believes Ben is cheating on Alex and he wants her to find out about it. Elsewhere Charlie encounters a bully at school so Walt and Screwsie assist her in getting vengeance. A second episode airs at 9:30.

Happy Endings (9:30pm, ABC) - For the second week in a row, all of the ABC comedies are reruns except for "Happy Endings." Tonight, Penny tells a little white lie to get out of reuniting with a pesky childhood friend, and soon the entire gang is caught up in a frenzy of lying, with each untruth larger than the one before. Meanwhile, Max and Dave's landlord takes a liking to Alex.

Monster Man (10pm, Syfy) - Director Tony Randel tasks the team with creating a bio-mechanical pest while an up-and-coming director needs ants with explosive personalities.

Duck Dynasty (10pm, A&E) - The guys attempt to construct a conveyor belt so they can fill their largest order ever. Meanwhile, Phil wants to use dynamite to eliminate a beaver dam. At 10:30, Phil and Si give a graphic presentation at a kids' career-day event.

American Weed (10pm, NGC) - Following the ban of marijuana dispensaries in Fort Collins, the Stanley brothers stay focused on their mission to keep medical marijuana legal for patients in Colorado. Later, Josh finds out that a new federal crackdown could close one of his dispensaries in Denver.

Criminal Minds (9pm, CBS) - The BAU searches for a kidnapper after an emaciated boy is found in an Arizona desert and another boy disappears.

Bent (9pm, NBC) - Here's what NBC does whenever they get a good new comedy: they barely promote it and then burn off the episodes really fast. I hope this isn't what they are doing with "Bent," but it sure feels like it. "Bent" is about a super chill contractor dude (David Walton) who tries to charm a newly divorced, high strung single mom (Amanda Peet) while he and his crew work on her home. Also stars JB Smoove, Jeffrey Tambor, and Jesse Plemons, who played Landry on "Friday Night Lights."  Episodes air at 9 and 9:30. Note: The other two funny NBC sitcoms that never got a decent chance -- "100 Questions" and "Perfect Couples" -- also starred David Walton.

Happy Endings (9:30pm, ABC) - As much as I'm getting behind "Bent," I do not condone skipping "Happy Endings" at 9:30!! Tonight, Dave becomes the target of a bully at his gym, so onetime bully Alex coaches him on how to work out his problems.

Duck Dynasty (10pm, A&E) - In the premiere episode of this new reality show about a Louisiana family who operate a thriving business manufacturing duck-hunting gear, Willie gets fed up with the lax work attitudes of other family members. The male members of the Robertson family look like they stepped straight out of a "Sons of Anarchy" casting call.

Psych (10pm, USA) - Shawn and Gus team up with members of Gus' former a cappella group to investigate the shooting of a prominent leader of an at-risk youth group.