MONDAY, DECEMBER 12

'Fear Factor' (8PM ET, NBC) season premiere
The anxiety-inducing competition series returns to NBC with all-new episodes featuring new stunts to test the stamina and nerves of the contestants. Advancements in technology have allowed the producers to develop challenges that are more fantastic than ever before -- such as the ominously titled "Towering Inferno" and the "Helicopter TNT Crash."

'Enlightened' (9.30PM ET, HBO) season finale
Amy persuades Levi to seek treatment after he has a late-night breakdown and at work, she challenges Dougie to make a presentation to Damon's group, regardless of the outcome. She also finds an unlikely ally to help her improve the environment at Abaddon.

'Hawaii Five-0' (10PM ET, CBS) midseason finale
On the eve of Chin Ho's wedding to Malia, the Five-0's investigation into a man left for dead in an abandoned WWII bunker crosses paths with Capt. Fryer's case of a Jane Doe.