One Tree Hill (8pm, CW) - The ninth and final season opens with Brooke adapting to family life with Julian and her new brood, and Clay and Quinn facing a puzzling complication.

Are You There, Chelsea? (8:30pm, NBC) - The premiere of a confusing new series about a sassy young bar worker, Chelsea Newman, and her group of twentysomething pals. The book is inspired by Chelsea Handler's book, "Are You There, Vodka? It's Me, Chelsea," but the Chelsea character is played by Laura Prepon. Adding to the confusion, Chelsea Handler, wearing a brunette wig, plays Chelsea's sister. So it's a show about Chelsea Handler starring Chelsea Handler, but Chelsea doesn't play Chelsea. Got it? Also, don't expect much.

People's Choice Awards (9pm, CBS) - Kaley Cuoco hosts this awards show, which recognizes fan favorites in movies, TV and music. Faith Hill and Demi Lovato perform.

Nova: Bombing Hitler's Dams (9pm, UNC-TV) - The story of a 1943 raid that employed a revolutionary bouncing bomb to destroy its targets: two gigantic dams in Germany's industrial heartland.

I Cloned My Pet (9pm, TLC) - A look at the social, scientific and financial ramifications of pet cloning. Okay, I understand the impulse, people. But just look at the over-crowded shelters!

Happy Endings (9:30pm, ABC) - Dave's father (Michael McKean) visits and brings along his new girlfriend (Megan Mullally), who just happens to be Penny's mother. Penny is happy for her mom but Dave is less than thrilled. Also, Alex buys a chatty, potty-mouthed parrot to keep her company at the story, and then suspects the Chinese restaurant next door to be a front for a brothel.

Face Off (10pm, Syfy) - Fourteen aspiring makeup artists face off the Season 2 premiere, which has them re-imagining characters from "The Wonderful Wizard of Oz."