What to Watch: December 18

'Crash' (10PM, Starz) season 2 finale
The second season concludes with a catastrophic event, but not before a busy finale that finds Ben (Dennis Hopper) and Anthony squaring off with the Manson freaks and getting the truth about Ben's daughter, and Seth throwing a soiree to celebrate development of his city for the homeless. But it's Wendy's participation in Seth's Byzantium project that steers the season towards its cliffhanger ending, as she's scheduled to be recognized for her work until Bo pops up with plans of his own.'Crash' (10PM, Starz) season 2 finale
The second season concludes with a catastrophic event, but not before a busy finale that finds Ben (Dennis Hopper) and Anthony squaring off with the Manson freaks and getting the truth about Ben's daughter, and Seth throwing a soiree to celebrate development of his city for the homeless. But it's Wendy's participation in Seth's Byzantium project that steers the season towards its cliffhanger ending, as she's scheduled to be recognized for her work until Bo pops up with plans of his own.

'Dollhouse' – In a two-hour installment of the lame duck series, Victor goes back to the real world when his contract expires, and Echo finds herself in a nightmare when she's labeled as too dangerous (8PM, Fox)

'Supernanny' – Jo has her work cut out for her when she tries to help a couple who both work full time and have four kids under the age of five (8PM, ABC)

'Say Yes to the Dress' – Sarah tries to help a stressed bride, who's frustrated with her lack of dress options as a plus-sized bride (9PM, TLC)

'Sanctuary' – Magnus and Will are on the trail of weasels who are taking advantage of drug-addled teens at a luxury "rehab resort" (10PM, SyFy)

'Oxygen's 25iest: Hollywood's Most Outrageous Holiday Gifts' – Includes scoop on who gave (and who received) a diamond-encrusted Bentley. Yep, that pretty much beats anything from the Ronco line (11PM, Oxygen)